Featured by F-Splitless injection method, Backflush, and Improved separation

NEWMulti-Functional Splitless Sampler MFS-2015E
Japanese Patent 7142374, US Patent 12013381 B2This product is a peripheral accessory exclusively used with the Multi-Shot Pyrolyzer(EGA/PY-3030D), which allows for the F-Splitless injection method, backflush, solvent
cut, and improves peak separation.

Features of MFS
1. F-Splitless injection method: High-sensitivity detection of trace
pyrolyzates and solvent venting
2. Backflush: Shortens analysis time by blocking high-boilingcompounds from flowing into separation column
3. Peak separation improvement: Improved peak separation byselecting an appropriate pre-column

MFS Flow Controller

System configuration
3) MFS FlowController
Pyrolyzer
Flow regulator

Solenoid

He (for BF)

HePumpVent2) Splitter

TemperatureController

The MFS consists of three units: (1) a precolumn connected between the GC inlet and aseparation column, (2) a splitter between thepre-column and the separation column, and (3)MFS Flow Controller consisting of a suction
pump and a flow regulator. The operation ofMFS Flow Controller can be programmed
through the software that comes standard in theFrontier Lab’s pyrolyzer package.

1) Pre-column
Detector

Separation
ColumnControl
SoftwareGC

Specifications
Supported columns

Required GC or GC/MS(alphabetical order)

Deactivated metal column (Ultra ALLOY®) and FS capillary column, i.d. 0.25 and0.32 mm
Agilent

5977 series, 5975 series, 8890, and 7890 GC

JEOL

JMS-Q1500GC

Shimadzu

QP2020 NX, GC-2030 *Thermo Fisher

ISQ series, TRACE1600 series, 1300 series

Each of the above instrument requires the ability to close the split vent and septum purge atthe same time for Splitless Pyrolysis. Please contact us for more information.

Required pyrolyzer*

Multi-Shot Pyrolyzer (EGA/PY-3030D) onlyAnalysis method

Flash pyrolysis (Single-shot analysis) only

Compatible accessory

Auto-Shot Sampler (AS-2020E, AS-1020E)
MicroJet Cryo-Trap (MJT-2030E, MJT-1035E, MJT-1030Ex )Power requirement

100 ~ 240 VAC, 40 VA* A sample injection unit for Shimadzu GC is required to perform splitless pyrolysis using this product in combination with our Auto-Shot Sampler.
Please contact us for further information and details.

Three Features of MFS
In the analysis examples below, the following columns are used.
• Pre-column: Ultra ALLOY+-50 (50 % diphenyl 50 % dimethylpolysiloxane), L=2 m, i.d. 0.25 mm df. 1.0 µm• Separation column : Ultra ALLOY+-5 (5 % diphenyl 95 % dimethylpolysiloxane), L=30 m, i.d. 0.25 mm, df. 0.5 µm

1. F-Splitless injection method

2. Shortened analysis time by backflushing (BF)

1.1 High-sensitivity detection of trace pyrolyzates
In normal splitless pyrolysis, the He flow rate is as low
as 4 mL/min, causing secondary reactions that greatlychange the pyrogram profile. 15 mL/min of He flow ratewith the MFS suppresses secondary reactions andincreases sensitivity by about 50 times compared to thesplit (1/50) pyrolysis method.
• Sample: Polystyrene 0.25 µg, Furnace Temp.: 550 ºC• GC Oven: 60 ºC - 280 ºC (40 ºC/min, 10 min hold)

Normal analysis

Styrene monomer (S)Split (1/50)
He: 50 mL/min

High-boiling compounds in pyrolyzates tend to remain in
the separation column, resulting in ghost peaks duringcontinuous analysis. The MFS prevents contaminationof the separation column by backflushing the highboiling compounds remained in the pre-column, thus
significantly shortening the analysis time. The figure
below shows an example of BF applied at 13 minutes,
shortening the analysis time from 35 to 20 minutes.
• Sample: polyethylene 0.05 mg, Furnace temp.: 600 ºC• GC oven: 40 ºC (2 min hold) - 320 ºC (20 ºC/min, 20 min hold)

C30

Peak area
SSS/S:

Styrene trimer (SSS)

15.2 %

x50

C40
With out BF

Splitless
He: 4 mL/min

0.7 %

x1

With BFMFS analysis(BF at 13 min)F-Splitless injection method15.8 %

0102030 min

x1

He: 15 mL/min

02468101214 min

3. Peak separation improvement by selecting
an appropriate pre-column

1.2 Solvent venting
By using the F-Splitless injection method of MFS,
unwanted components such as solvents are vented
from the system by a suction pump before they are
introduced into the separation column to protect theseparation column and detector.

The figure below shows an example of peak separation
by selecting a pre-column having a stationary phase ofdifferent polarity and an optimal length.
• Sample: polyethylene (PE) 320 µg, Polypropylene (PP)
80 µg, Nylon-6,6 (N66) 18 µg, Furnace temp.: 600 ºC• GC oven: 40 ºC (2 min hold) – 280 ºC (20 ºC/min)• Sample: Hexane 1 µL, GC detector: FID• GC oven: 40 ºC (2 min hold) - 200 ºC (20 ºC/min)
C8’(PE) and Cyclopentanone(N66)

HexaneC9’ (PP)Peak area: 1.0 x 1012

Pre-column: UA+-5(5 % Diphenyl 95 % PDMS,
L = 1 m, df = 0.5 µm)

Without F-Splitless
injection method

Pre-column: UA+-50
Peak area: 1.7 x 1010

With F-Splitless
injection method(50 % Diphenyl 50 % PDMS,
L = 2 m, df = 1.0 µm)

EIC: m/z 84

EIC: m/z 8450567 min10 minVisit our website for the latest informationwww.frontier-lab.com
Offering superior products from a company specialized in development and production of high performance pyrolyzers and metal capillary columns.
MK240820E