A new method of calculation of multicomponent liquid-liquid extraction

: A new, simple method for the synthesis of N, N-dietyl-m-methylbenzamide (DEET) from m-toluic acid and diethylamine using 1,1'-carbonyl-di-(1,2,4-triazole) (CDT) as a coupling agent has been performed. The basic principles of activated carbonyls have been explored with the ability to prepare new amides easily. All reaction by-products are water-soluble as well as removed by filtration, the reaction could be purified easily in an aqueous solution by liquid-liquid extraction, and the product DEET was high purity. This experimental efficiency is about 94-95%, purity (HPLC): 97-98%.

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A new method for separation and spectrophotometric determination of phosphate ion by the liquid-liquid extraction with benzophenone at an elevated temperature

Fresenius Zeitschrift für Analytische Chemie ◽

10.1007/bf00481995 ◽

1978 ◽

Vol 293 (1) ◽

pp. 23-24 ◽

Cited By ~ 8

Author(s):

Norio Ichinose ◽

Shigeyuki Yamada ◽

Nobuo Sakurai ◽

Toraya Fujiyama ◽

Naoko Masuda

Keyword(s):

Elevated Temperature ◽

Spectrophotometric Determination ◽

Liquid Extraction ◽

New Method ◽

Phosphate Ion ◽

Liquid Liquid Extraction

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New Method for Quaternary Systems Liquid−Liquid Extraction Tray to Tray Design

Industrial & Engineering Chemistry Research ◽

10.1021/ie9900723 ◽

1999 ◽

Vol 38 (8) ◽

pp. 3083-3095 ◽

Cited By ~ 10

Author(s):

A. Marcilla ◽

A. Gómez ◽

J. A. Reyes ◽

M. M. Olaya

Keyword(s):

Liquid Extraction ◽

New Method ◽

Quaternary Systems ◽

Liquid Liquid Extraction

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Determination of DDT in honey samples by liquid–liquid extraction with low-temperature purification (LLE-LTP) combined to HPLC-DAD

Analytical Methods ◽

10.1039/d1ay00264c ◽

2021 ◽

Vol 13 (16) ◽

pp. 1955-1964

Author(s):

Lucas Victor Pereira de Freitas ◽

Lorena Maria Guimarães Alves ◽

Lázaro Chaves Sicupira ◽

Gevany Paulino de Pinho ◽

Flaviano Oliveira Silvério

Keyword(s):

Low Temperature ◽

Liquid Extraction ◽

New Method ◽

Liquid Liquid Extraction

This paper describes a new method for the determination of DDT in honey samples by liquid–liquid extraction with low-temperature purification (LLE-LTP) combined with HPLC-DAD.

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New method based on combining ultrasonic assisted miniaturized matrix solid-phase dispersion and homogeneous liquid–liquid extraction for the determination of some organochlorinated pesticides in fish

Analytica Chimica Acta ◽

10.1016/j.aca.2011.06.008 ◽

2011 ◽

Vol 702 (2) ◽

pp. 274-279 ◽

Cited By ~ 24

Author(s):

Farahnaz Rezaei ◽

Mohammad-Reza Milani Hosseini

Keyword(s):

Solid Phase ◽

Liquid Extraction ◽

New Method ◽

Homogeneous Liquid ◽

Organochlorinated Pesticides ◽

Matrix Solid Phase Dispersion ◽

Phase Dispersion ◽

Liquid Liquid Extraction ◽

Ultrasonic Assisted

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Modern modification of the method for determination of organochlorine pesticides in organic vehicles

Izvestiya TINRO ◽

10.26428/1606-9919-2017-188-244-250 ◽

2017 ◽

Vol 188 (1) ◽

pp. 244-250

Author(s):

Andrey P. Chernyaev ◽

Ekatherina Yu. Rychkova ◽

Nickolay B. Kondrikov ◽

Ekatherina N. Zyk

Keyword(s):

Liquid Chromatography ◽

Organochlorine Pesticides ◽

Total Content ◽

Liquid Extraction ◽

Marine Organisms ◽

New Method ◽

Gas Liquid Chromatography ◽

Okhotsk Sea ◽

Liquid Liquid Extraction

New method for determination of organochlorine pesticides (DDT and its metabolites, HCH and its isomers) is presented. The method includes a liquid-liquid extraction of pesticides under ultrasound and the substance analysis by gas-liquid chromatography. The degree of DDT and γ-HCH extracting from tissues of marine organisms is (78 ± 2) % and (91 ± 2) %, respectively. The total content of organochlorine pesticides in muscles of walleye pollock from the Okhotsk Sea is evaluated by this method in the range from 25 to 73 pg/g of lipids.

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