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N A Gorbacheva

Publications and source records attributed to N A Gorbacheva.

At least 19 recordsLinked to original sources
PubMedDate not supplied

[Use of thin layer chromatographic analysis in forensic medical analysis of urine for opiates].

The study results of identifying the opium alkaloids (morphine, codeine and their synthetic analogue heroin) in urine during the forensic chemical examinations by using the method of thin-layer chromatography (TLC) are described. Several solvent systems and chromogenic reagents designed for the TLC analysis of opiates are presented. Solvent systems were defined to separate the opiates (isolated from urine) in Sorbphyl plates; besides, a chromogenic reagents' kit was suggested to detect them in the forensic medical analysis of urine. There is a description of the study method.

Chromatography, Thin Layer↗
PubMedDate not supplied

[The gas chromatographic determination of carbophos in cadaveric material].

The authors developed a method of malathion insecticide determination in the cadaveric material (blood and wall of the stomach) including extraction of 5 ml of blood (5 g of fragmented tissue of stomach wall) by hexan; preparative chromatographic purification of extract on silicagel layer L 5/40 mkm in hexan-diethyl ether system 10:2; Gas-liquid chromatographic investigation on column with 5% SE-30 and 5% XE-60 (Chromatograph "Colour-106" with thermionic detector). This method makes it possible to detect 72-76% of malathion added.

Cadaver↗
PubMedDate not supplied

[The isolation and detection of actellic by thin-layer chromatography in the forensic chemical study of cadaveric organs].

A method for analysis of human cadaveric organs for actellik, an organophosphorus insecticide (pyrimiphos methyl), has been developed, consisting in the agent isolation using hexan, separation of extraction substances by extraction redistribution between hexan and dimethylformamide, and subsequent preparative chromatographic isolation in a sorbent layer (KSK silica gel or silicic acid) with chloroform used as solvent. This method permits isolation of 49-52% of actellic added to the liver. A method of purified extract analysis by thin-layer chromatography on silufol plates and KSK silica gel using a complex of chromogenic reagents and selective solvent system has been worked out. The method permits detection of 0.12 to 0.6 mg of actellic in 25 g of organic tissue depending on analysis conditions.

Cadaver↗