A method for determining molybdenum in cadaveric material by using alkylphenylcyclohexylcarboxylic acid]

Alkylphenylcyclohexylcarboxylic acid was found to be an efficient extractant to extract molybdenum from the cadaveric material. Method suggested is simple enough for use and doesn't require considerable amounts of chemical reagents.     

生物材料中二氯苯醚菊酯的反相高效液相色谱分析方法研究

目的为了解决二氯苯醚菊酯中毒检验的问题及进一步开展研究工作，建立多种生物材料中二氯苯醚菊酯高效液相色谱分析方法。方法选用shim—pack，CLC—ODS（5μm）作色谱柱，甲醇：水：冰醋酸（90：10：1）为流动相，检测波长为274mm。用空白添加试验系统地考察提取，净化方法及高效液相色谱分析条件。用日本大耳兔进行急性染毒，取材对所建方法进行验证。结果采用所建方法，空白组织添加回收率在0．2～20μg／g的范围内均大于85％；工作曲线线性良好（r＝0．9998）；以信噪比≥3计，最低检测限为10ng／g组织；方法重现性良好（CV＜4．5％，n=3）；染毒兔各组织中的内源性杂质均不干扰二氯苯醚菊酯的检测。结论所建方法适用于检测多种生物材料中的二氯苯醚菊酯，方法灵敏、准确，可望用于二氯苯醚菊酯的中毒检验、代谢动力学及分析毒理学的研究。     

生物材料中二氯苯醚菊酯的反相高效液相色谱分析方法研究

目的 为了解决二氯醛醚菊酯中毒检验的问题及进一步开展研究工作，建立多种生物材料中二氯苯醚菊酯高效液相色谱分析方法。方法 选用ｓｈｉｍ－ｐａｃｋ，ＣＬＣ－ＯＤＳ（５μｍ）作色谱柱，甲醇：水：冰醋酸（９０：１０：１）为流动相，检测波长为２７４ｎｍ。用空白添加试验系统地考察提取，净化方法及高效液相色谱分析条件。用日本大耳兔进行急性染毒，取材对所建方法进行验证。结果 采用所建方法，空白组织添加回收率在０．     

The restrictase analysis of human DNA as a method for determining genetic sex in forensic biological expertise]

In this article phenomena related to sex heteromorphism of restrictase hydrolysates of DNA, isolated from objects of expert analysis was recommended for use. The performed investigations allow one to work out the system of discriminating sex of biological objects, based on restrictase analysis of human DNA and on registration of sex-specific restrictase fragments. Possibilities of method and its value for gene-identification expertise were illustrated using certain cases from expert practice.     

A complex method for determining age by tooth status using analog computers]

Combination of roentgenography with direct image magnification and its analysis by medical iconics methods increase significantly possibility of age determination by teeth status (prediction accuracy by upper canine tooth is 99.8% +/- 0.81 year). Adaptive character of change in teeth density over the period of their functioning was detected. Integrative metric index--age metric index--is an objective criterion of age status of a tooth.     

The detection of aromatic substances in biological material]

The author presents experimental data and suggests a method for extraction of aromatic substances from the blood, urine, lavage water, stomach and its contents, liver and kidneys. The extract is dissolved in 96% ethanol and the aromatic substances are detected in reactions with hydrochloric acid, Marki's reagent, 2,4-dinitrophenylhydrazine, diazotized o-dianisidine, phthivazide, chromotropic acid by UV spectrophotometry, thin-layer and gas-liquid chromatography. The sensitivity of the method is 0.1-0.5 mg %.     

The detection of abortion agents in biological material]

Methods of extraction and detection of ascorbic acid, ergot alkaloids, cotarnine, microfollin, tinctures of marigold, peony, sage-brush, iodine, benzestrol, pachycarpine, hexestrol, folliculin, quinine, ethoxydiaminoacridine lactate were developed. Detection limits are 0.1-1 mg/100 g of object. Methods of manganese, iodine and soap detection are developed. Detection limits are 0.05-2 mg/100 g of object.     

The forensic chemical determination of remantadine in biological material]

Suggests new microcrystalloscopic tests for the identification of remantadine and assesses the specificity and sensitivity of these tests. Describes a thin-layer chromatographic technique for remantadine identification.     

A gas chromatographic method for determining acetaldehyde in cadaver blood

Gas-chromatographic method of acetaldehyde detection in blood of subjects who died of alcoholic intoxication is suggested. Method is simple, does not require additional expenses, can be readily used in medicolegal practice and in difficult cases it may help the expert to make an objective conclusion on the cause of death.     

Chemiluminescent immunoenzyme method for determining gidazepam

Competitive solid-phase enzyme immunoassay of gidasepam (a benzodiazepine) in the urine with chemiluminescent detection has been developed. The sensitivity of analysis for gidasepam is 10 ng/ml. Comparative measurements of benzodiazepines in the urine of patients abusing these agents by polarization fluorescence and the proposed method showed good coincidence of the results. The results demonstrate the possibility of using this method in medicine and narcology in combination with other instrumental methods.