Authors: M Aahseynova | Rusiya Tbit | Elmlri Akademiyasnn | M Dosent | zvlr Babanl | S Hacyeva | T Mmmdova | Yusif Akademik | Adna Mmmdliyev | Kimya Neft | Proseslri | Mousavi Amin | Khaneghah | A Dedov | Rusiya Elmlr | Akademiyasnn Akademiki | V Mealkin | D Mendeleyev | Rusiya Dvlt Kimya | V Tretyakov | Stefan Erast | N Muradov | S Mmmdxanova | Dvlt Neft | Hsnov | F mirov | Y Qhrmanl | V Baiyev | Azrbaycan Dvlt | Neft V Snaye | T Naibova Dosent | Neft V | Snaye Universiteti | R Qurbanova Dosent | M Aghahuseynova | M Abdullayeva | M Babanli | Q Kalbaliyev | B Mammadov | S Hajiyeva | T Mamedova | V Mashalkin | Stefan Ernst | S Mammadkhanova | A Hasanov | F Amirov | Y Gahramanli | V Bagiyev | T Naibova | R Qurbanova | N Sadiyeva | S Iskenderova | Y Cherepnova | G Nasibova | L Afandiyev | S Aliyeva | D Aghahuseynova | Balakishiyeva | Dashdiyeva | P Mammadov | T Javadzade | A Sucayev | R Mammadova | F Chiragov | L Afandiyeva | Y Mamedaliyev' | E Zeynalov | D Balakishiyeva | A Gasanov | A Huseynli | G Bayramov Baku | S skenderova | N Babanl | Asadova Sh | Hou Zh | Han | J Zhang | Liu Zh | J He | X Zhang | G Yang | V Benitez | M Benitez | C Vera | C Pieck | F Lacamoire | J Yori | J Grau | J | T Loften | X Chen | Y Du | Chen | N Xu | i | B Rosenberg
Source: Azerbaijan journal of Chemical News (article, 2022-12-06)
Field: Chemistry — Electrochemistry

NEW SIMPLE METHOD FOR THE DETERMINATION OF TRACE LEVEL COPPER (II) USING 1- [2- (ALLYLAMINO) -1-METHYLETHYL] THIOUREA IN PRESENCE OF HYDROFOB AMINES BY MOLECULAR ABSORPTION SPECTRAL METHOD IN THE UV AND VISIBLE REGION Cu(II) with 1- [2- (allylamino) -1-methylethyl] thiourea the rapid reacts to form orange complex and also it to form to form brownish complexes in presence of the phenanthroline (Phen) and α,α′ - dipyridine ( α,α′ -dip ). The absorption spectra of the Cu(II) - AMTIC system is a curve with the maximum absorbance at 415 nm and molar absorption coefficient of 1.95.104 l mol−1 cm−1. The absorption spectra of the Cu(II)- AMTIC- Phen and Cu(II) -AMTIC - α,α′-dip systems is a curve with the maximum absorbances at 437 nm and 443 nm and molar absorption coefficients of 2.94.104 l mol−1 cm−1 and 2.81.104 l mol−1 cm−1, respectively. The absorbance was linear for 0.25–2.07 mkg ml−1 of Cu(II) in the Cu(II)- AMTIC system and 0.12 –2.56 mkg ml−1 and 0.18–2.45 mkg ml−1 of Cu(II) in the Cu(II)-AMTIC- Phen and Cu(II)-AMTIC- α,α′-dipsystems, respectively. The proposed methods was successfully used in the determination of Cu(II) in several synthetic mixtures. The relative standard deviation (n = 5) was 0%–2.0%, for Cu(II), indicating that this methods are highly precise and reproducible. The results obtained agree well with synthetic mixture samples analyzed by inductively coupled plasma optical emission spectrometry (ICP-OES). Keywords: copper, 1- [2- (allylamino) -1-methylethyl] thiocarbamide, phenanthroline (Phen ) and α,α′ - dipyridine. Thiourea ; Absorbance ; Chemistry ; Copper ; Analytical Chemistry (journal) ; Molar absorptivity ; Absorption (acoustics) ; Absorption spectroscopy ; Relative standard deviation ; Detection limit ; Chromatography ; Materials science Electrochemical Analysis and Applications ; Metal complexes synthesis and properties ; Inorganic and Organometallic Chemistry