cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.15468/dl.wcviqe
title: Occurrence Download

description: A dataset containing 49429 species occurrences available in GBIF matching the query:
{
 "DatasetKey" : [
 "is Colección Herbario Federico Medem Bogotá - FMB"
 ]
}

 The dataset includes 49429 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0004537-150922153815467/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.htf96p
title: Occurrence Download

description: A dataset containing 1364 species occurrences available in GBIF matching the query:
{
 "and" : [
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "OccurrenceStatus is Present",
 "TaxonKey is Xylocarpus granatum J.Koenig"
 ]
}

 The dataset includes 1364 records from 56 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0047735-231002084531237/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.w7acsq
title: Occurrence Download

description: A dataset containing 96513 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Esox lucius Linnaeus, 1758",
 "HasCoordinate is true",
 "HasGeospatialIssue is false"
 ]
}

 The dataset includes 96513 records from 128 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0004537-160118175350007/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.whrnsc
title: Occurrence Download

description: A dataset containing 0 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Climacoptera olgae (Iljin) Botsch."
 ]
}

 The dataset includes 0 records from 0 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0140239-230224095556074/datasets/export for details.
DOI: 10.15468/dl.gvpuzo
title: Occurrence Download

description: A dataset containing 2644 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Country is Spain",
 {
 "or" : [
 "TaxonKey is Cheirolophus mansanetianus Stübing, Peris, Olivares & J.Martín",
 "TaxonKey is Chenopodium coronopus Moq.",
 "TaxonKey is Christella dentata (Forssk.) Brownsey & Jermy",
 "TaxonKey is Cicer canariense A.Santos & G.P.Lewis",
 "TaxonKey is Cistanche mauritanica (Coss. & Durieu) Beck",
 "TaxonKey is Cistus asper Demoly & R.Mesa",
 "TaxonKey is Cistus chinamadensis Bañares & P.Romero",
 "TaxonKey is Cistus chinamadensis subsp. gomerae Bañares & P.Romero",
 "TaxonKey is Cistus chinamadensis subsp. ombriosus Demoly & M.Marrero",
 "TaxonKey is Cistus grancanariae Marrero Rodr., R.S.Almeida & C.Ríos",
 "TaxonKey is Cistus heterophyllus subsp. carthaginensis (Pau) M.B.Crespo & Mateo",
 "TaxonKey is Cistus osbeckiifolius subsp. osbeckiifolius",
 "TaxonKey is Clethra arborea Aiton",
 "TaxonKey is Clypeola cyclodontea Delile",
 "TaxonKey is Clypeola eriocarpa Cav.",
 "TaxonKey is Cochlearia pyrenaica DC.",
 "TaxonKey is Coincya longirostra (Boiss.) Greuter & Burdet",
 "TaxonKey is Coincya monensis subsp. puberula (Pau) Leadlay",
 "TaxonKey is Coincya rupestris subsp. leptocarpa (Gonz.Albo) Leadlay",
 "TaxonKey is Coincya rupestris subsp. rupestris",
 "TaxonKey is Convolvulus caput-medusae Lowe",
 "TaxonKey is Convolvulus glandulosus (Webb) Hallier fil.",
 "TaxonKey is Convolvulus lopezsocasii Svent.",
 "TaxonKey is Convolvulus scoparius L.fil.",
 "TaxonKey is Convolvulus subauriculatus (Burchard) Linding",
 "TaxonKey is Convolvulus valentinus Cav.",
 "TaxonKey is Convolvulus volubilis Brouss. ex Link",
 "TaxonKey is Corallorhiza trifida Châtel.",
 "TaxonKey is Coristospermum huteri (Porta) L.Sáez & Rosselló",
 "TaxonKey is Coronilla viminalis Salisb.",
 "TaxonKey is Coronopus navasii Pau",
 "TaxonKey is Crambe arborea Webb ex H.Christ",
 "TaxonKey is Crambe feuilleei A.Santos",
 "TaxonKey is Crambe laevigata DC. ex H.Christ",
 "TaxonKey is Crambe pritzelii Bolle",
 "TaxonKey is Crambe scoparia Svent.",
 "TaxonKey is Crambe sventenii B.Pett. ex Bramwell & Sundell",
 "TaxonKey is Crambe tamadabensis A.Prina & A.Marrero",
 "TaxonKey is Crambe wildpretii A.Prina & Bramwell",
 "TaxonKey is Crataegus laciniata Ucria"
 ]
 }
 ]
}

 The dataset includes 2644 records from 67 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0004537-160822134323880/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.4qdygj
title: Occurrence Download

description: A dataset containing 190 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Climacoptera lanata (Pall.) Botsch."
 ]
}

 The dataset includes 190 records from 31 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0140229-230224095556074/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.mcwu88
title: Occurrence Download

description: A dataset containing 3 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Country is Canada",
 "DatasetKey is The New York Botanical Garden Herbarium (NY)",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "TaxonKey is Pectenia plumbea (Lightf.) P.M.Jørg., L.Lindblom, Wedin & S.Ekman"
 ]
}

 The dataset includes 3 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0025867-200613084148143/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.xk5lio
title: Occurrence Download

description: A dataset containing 6410254 species occurrences available in GBIF matching the query:
{
 "and" : [
 {
 "or" : [
 "BasisOfRecord is Observation",
 "BasisOfRecord is Machine Observation",
 "BasisOfRecord is Human Observation",
 "BasisOfRecord is Material sample",
 "BasisOfRecord is Specimen",
 "BasisOfRecord is Living Specimen"
 ]
 },
 "Country is Canada",
 "Geometry POLYGON((-68.99414 43.98926,-66.35742 40.12207,-56.51367 39.24316,-51.06445 42.58301,-46.8457 46.88965,-47.46094 53.83301,-51.67969 59.63379,-62.13867 58.40332,-70.83984 46.88965,-68.99414 43.98926))",
 "TaxonKey is Animalia"
 ]
}

 The dataset includes 6410254 records from 259 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0003507-181003121212138/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.3ramgu
title: Occurrence Download

description: A dataset containing 135 species occurrences available in GBIF matching the query:
{
 "and" : [
 "BasisOfRecord is Specimen",
 "TaxonKey is Iberis fontqueri Pau"
 ]
}

 The dataset includes 135 records from 29 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0038430-200613084148143/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.o8ky2t
title: Occurrence Download

description: A dataset containing 306 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Thyroptera tricolor Spix, 1823",
 "HasCoordinate is TRUE"
 ]
}

 The dataset includes 306 records from 34 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0010155-180508205500799/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.yw30p1
title: Occurrence Download

description: A dataset containing 3465 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Geometry POLYGON((44.64844 -13.43491,45.70587 -13.43216,45.66193 -12.36649,44.73083 -12.22366,44.78302 -12.71187,44.64844 -13.43491))",
 "TaxonKey is Arthropoda",
 "HasGeospatialIssue is false"
 ]
}

 The dataset includes 3465 records from 27 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0005224-180730143533302/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.cfo945
title: Occurrence Download

description: A dataset containing 10 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Country is Colombia",
 "TaxonKey is Bombus excellens Smith, 1879"
 ]
}

 The dataset includes 10 records from 5 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0036562-200221144449610/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.fw3mzf
title: Occurrence Download

description: A dataset containing 17485 species occurrences available in GBIF matching the query:
{
 "DatasetKey" : [
 "is DORSA - German Orthoptera Collections"
 ]
}

 The dataset includes 17485 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0111158-210914110416597/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.wembmq
title: Occurrence Download

description: A dataset containing 195 species occurrences available in GBIF matching the query:
{
 "and" : [
 {
 "or" : [
 "BasisOfRecord is Material sample",
 "BasisOfRecord is Specimen",
 "BasisOfRecord is Living Specimen"
 ]
 },
 "Country is Peru",
 "TaxonKey is Chloroceryle americana (J.F.Gmelin, 1788)"
 ]
}

 The dataset includes 195 records from 13 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0005224-181003121212138/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.6zjene
title: Occurrence Download

description: A dataset containing 37 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Chusquea microphylla (Döll) L.G.Clark"
 ]
}

 The dataset includes 37 records from 16 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0050049-200221144449610/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.ddy0jr
title: Occurrence Download

description: A dataset containing 7 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Chromodoris annulata Eliot, 1904"
 ]
}

 The dataset includes 7 records from 5 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0022443-191105090559680/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.p0xqp7
title: Occurrence Download

description: A dataset containing 102854 species occurrences available in GBIF matching the query:
{
 "DatasetKey" : [
 "is University of South Carolina, A. C. Moore Herbarium Vascular Plant Collection"
 ]
}

 The dataset includes 102854 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0005224-181108115102211/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.x2bn38
title: Occurrence Download

description: A dataset containing 17058 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Pagophila eburnea (Phipps, 1774)"
 ]
}

 The dataset includes 17058 records from 124 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0057563-240506114902167/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.h8slyx
title: Occurrence Download

description: A dataset containing 113 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Year is 1989",
 "TaxonKey is Nannophryne cophotis (Boulenger, 1900)"
 ]
}

 The dataset includes 113 records from 4 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0003507-190415153152247/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.6kwhxa
title: Occurrence Download

description: A dataset containing 305 species occurrences available in GBIF matching the query:
{
 "and" : [
 "DatasetKey is Camera trap database of Tiger from Rajaji National Park, Uttarakhand",
 "TaxonKey is Panthera tigris (Linnaeus, 1758)"
 ]
}

 The dataset includes 305 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0050148-210914110416597/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.8545bz
title: Occurrence Download

description: A dataset containing 526024 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Country is Venezuela (Bolivarian Republic of)",
 "OccurrenceStatus is Present",
 "TaxonKey is Plantae"
 ]
}

 The dataset includes 526024 records from 420 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0022913-220831081235567/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.tyn8q2
title: Occurrence Download

description: A dataset containing 47 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Chusquea spicata Munro"
 ]
}

 The dataset includes 47 records from 15 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0050035-200221144449610/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.hli44n
title: Occurrence Download

description: A dataset containing 31733 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Year 1900-2019",
 "HasCoordinate is true",
 "TaxonKey is Ixodida",
 "HasGeospatialIssue is false"
 ]
}

 The dataset includes 31733 records from 322 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0005224-190307172214381/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.jz228z
title: Occurrence Download

description: A dataset containing 743 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Inga stenoptera Benth."
 ]
}

 The dataset includes 743 records from 59 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0337061-200613084148143/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.xjtbsq
title: Occurrence Download

description: A dataset containing 56401 species occurrences available in GBIF matching the query:
{
 "and" : [
 "BasisOfRecord is Human Observation",
 "Country is Australia",
 "Year 1999-2019",
 "HasCoordinate is true",
 "TaxonKey is Vulpes vulpes (Linnaeus, 1758)",
 "HasGeospatialIssue is false"
 ]
}

 The dataset includes 56401 records from 18 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0070150-200221144449610/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.j6p8sx
title: Occurrence Download

description: A dataset containing 565 species occurrences available in GBIF matching the query:
{
 "and" : [
 "BasisOfRecord is one of (Observation, Machine Observation, Human Observation, Material sample, Material citation, Specimen, Living Specimen, Occurrence evidence)",
 "Continent is Asia",
 "TaxonKey is Metasequoia Hu & W.C.Cheng"
 ]
}

 The dataset includes 565 records from 89 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0046316-240626123714530/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.6hvvke
title: Occurrence Download

description: A dataset containing 28 species occurrences available in GBIF matching the query:
{
 "Geometry" : [
 "POLYGON ((147.848476 -33.703238, 147.848476 -33.707729, 147.839493 -33.707729, 147.839493 -33.709975, 147.835002 -33.709975, 147.835002 -33.714467, 147.83051 -33.714467, 147.83051 -33.745908, 147.835002 -33.745908, 147.835002 -33.750399, 147.839493 -33.750399, 147.839493 -33.752645, 147.843985 -33.752645, 147.843985 -33.761628, 147.848476 -33.761628, 147.848476 -33.76612, 147.85746 -33.76612, 147.85746 -33.768366, 147.866443 -33.768366, 147.866443 -33.770611, 147.870934 -33.770611, 147.870934 -33.772857, 147.877672 -33.772857, 147.877672 -33.777349, 147.893392 -33.777349, 147.893392 -33.775103, 147.897884 -33.775103, 147.897884 -33.768366, 147.893392 -33.768366, 147.893392 -33.759383, 147.888901 -33.759383, 147.888901 -33.741416, 147.884409 -33.741416, 147.884409 -33.743662, 147.866443 -33.743662, 147.866443 -33.741416, 147.861951 -33.741416, 147.861951 -33.73917, 147.85746 -33.73917, 147.85746 -33.736925, 147.852968 -33.736925, 147.852968 -33.730187, 147.848476 -33.730187, 147.848476 -33.721204, 147.852968 -33.721204, 147.852968 -33.714467, 147.85746 -33.714467, 147.85746 -33.712221, 147.861951 -33.712221, 147.861951 -33.709975, 147.866443 -33.709975, 147.866443 -33.705483, 147.870934 -33.705483, 147.870934 -33.703238, 147.848476 -33.703238))"
 ]
}

 The dataset includes 28 records from 5 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0046317-240626123714530/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.5281/zenodo.13191954
title: Feuchtwangen Apotheke

description: Historical questionnaire/s 1924/1948 and index cards, partly selected enclosures regarding the history of a German pharmacy, catalogued via Kalliope portal (Historischer Fragebogen 1924/1948 und Karteikarten, ggf. gemeinfreie Anlagen zur Apothekengeschichte; als Katalog dient das Nachlassportal Kalliope): https://kalliope-verbund.info/DE-611-BF-70963 [Funktion: Im Findbuch anzeigen]

Please note: The Kalliope catalogue entry might indicate related material in the archival folder which cannot be published due to copyright or other legal restrictions (NB: Das Katalogisat bei Kalliope kann auch auf Materialien - teils erheblichen Umfangs - verweisen, die aus archiv- oder urheberrechtlichen Gründen nicht veröffentlicht werden dürfen).
DOI: 10.15468/dl.d4epzf
title: Occurrence Download

description: A dataset containing 0 species occurrences available in GBIF matching the query:
{
 "Geometry" : [
 "POLYGON ((148.955655 -33.772857, 148.955655 -33.777349, 148.964639 -33.777349, 148.964639 -33.772857, 148.955655 -33.772857))"
 ]
}

 The dataset includes 0 records from 0 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0046318-240626123714530/datasets/export for details.
DOI: 10.34740/kaggle/dsv/9094777
title: ⏳ endoflife.date database (duckdb)
DOI: 10.15468/dl.u4mujv
title: Occurrence Download

description: A dataset containing 0 species occurrences available in GBIF matching the query:
{
 "Geometry" : [
 "POLYGON ((148.564886 -33.775103, 148.564886 -33.777349, 148.567132 -33.777349, 148.567132 -33.775103, 148.564886 -33.775103))"
 ]
}

 The dataset includes 0 records from 0 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0046319-240626123714530/datasets/export for details.
DOI: 10.5281/zenodo.13192034
title: Feuerbach Apotheke

description: Historical questionnaire/s 1924/1948 and index cards, partly selected enclosures regarding the history of a German pharmacy, catalogued via Kalliope portal (Historischer Fragebogen 1924/1948 und Karteikarten, ggf. gemeinfreie Anlagen zur Apothekengeschichte; als Katalog dient das Nachlassportal Kalliope): https://kalliope-verbund.info/DE-611-BF-70963 [Funktion: Im Findbuch anzeigen]

Please note: The Kalliope catalogue entry might indicate related material in the archival folder which cannot be published due to copyright or other legal restrictions (NB: Das Katalogisat bei Kalliope kann auch auf Materialien - teils erheblichen Umfangs - verweisen, die aus archiv- oder urheberrechtlichen Gründen nicht veröffentlicht werden dürfen).
DOI: 10.15468/dl.ze69zg
title: Occurrence Download

description: A dataset containing 316 species occurrences available in GBIF matching the query:
{
 "Geometry" : [
 "MULTIPOLYGON (((148.398697 -33.777349, 148.405435 -33.777349, 148.405435 -33.772857, 148.40768 -33.772857, 148.40768 -33.770611, 148.414418 -33.770611, 148.414418 -33.777349, 148.412172 -33.777349, 148.412172 -33.784086, 148.40768 -33.784086, 148.40768 -33.788578, 148.412172 -33.788578, 148.412172 -33.793069, 148.414418 -33.793069, 148.414418 -33.795315, 148.418909 -33.795315, 148.418909 -33.802053, 148.421155 -33.802053, 148.421155 -33.788578, 148.418909 -33.788578, 148.418909 -33.768366, 148.414418 -33.768366, 148.414418 -33.750399, 148.412172 -33.750399, 148.412172 -33.757137, 148.40768 -33.757137, 148.40768 -33.761628, 148.405435 -33.761628, 148.405435 -33.768366, 148.403189 -33.768366, 148.403189 -33.770611, 148.398697 -33.770611, 148.398697 -33.777349)), ((148.398697 -33.777349, 148.396451 -33.777349, 148.396451 -33.779595, 148.398697 -33.779595, 148.398697 -33.777349)), ((148.412172 -33.777349, 148.412172 -33.772857, 148.40768 -33.772857, 148.40768 -33.777349, 148.412172 -33.777349)))"
 ]
}

 The dataset includes 316 records from 8 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0046320-240626123714530/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.4je9q7
title: Occurrence Download

description: A dataset containing 5828 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Actinemys marmorata (Baird & Girard, 1852)"
 ]
}

 The dataset includes 5828 records from 56 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0262034-200613084148143/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.1594/pangaea.848704
title: Continuous meteorological observations at station ZAWS, Warszawa Icefield, King George Island, Antarctic Peninsula, 2012-01
DOI: 10.17632/5xdf5y9z24.1
title: Simulation data on nozzle configuration of direct-contact gas-vapor mixture generators

description: This is a supplementary data on the research
DOI: 10.22000/338
title: PSYCHE - a valuable experiment in plant NMR-metabolomics

description: 1H-NMR is a very reproducible spectroscopic method and, therefore, a powerful tool for metabolomic analysis of biological samples. However, due to the high complexity of natural samples, such as plant extracts, the evaluation of spectra is difficult because of signal overlap. The new NMR "Pure Shift" methods improve spectral resolution by suppressing homonuclear coupling and turning multiplets into singlets. The PSYCHE (Pure Shift Yielded by Chirp excitation) and the Zangger-Sterk pulse sequence were tested. The parameters of the more suitable PSYCHE experiment were optimized, and the extracts of 21 Hypericum species were measured. Different evaluation criteria were used to compare the suitability of the PSYCHE experiment with conventional 1H-NMR. The relationship between the integral of a signal and the related bin value established by linear regression demonstrates an equal representation of the integrals in binned PSYCHE spectra compared to conventional 1H-NMR. Using multivariate data analysis based on both techniques reveals comparable results. The obtained data demonstrate that Pure Shift spectra can support the evaluation of conventional 1H-NMR experiments.
description: Agilent VNMRS 600 NMR spectrometer