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介绍了敌鼠和溴敌隆抗凝血杀鼠药的定性定量分析方法.在酸性条件下,选用液-液提取和C_(18)柱固相萃取方法处理生物样品,用高效液相色谱法和薄层色谱方法定性定量分析.方法适用于中毒案件的检验. 相似文献
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Document examiners are frequently asked to determine whether or not a colour printout has originated from a particular inkjet printer. The printer can rarely be identified unless some unique defects or irregularities of the printer are present on the printout. However, it is possible to decipher the make and/or model of the printer by comparing the ink-profile of the questioned printout with that of a seized inkjet printer cartridge or from one in a database. This paper presents an overview of a systematic approach to characterising and discriminating the inks of different inkjet printer cartridges using thin layer chromatography (TLC) and high pressure liquid chromatography (HPLC) with multi-wavelength ultra-violet/visible (UV/Vis) detection. Ink samples from 23 different inkjet printer cartridges (including originals and substitutes) of different brands and colour printouts, printed by known printers were examined with newly developed chromatographic methods. Subsequently, a database of the ink-profiles was generated. The methods provide a useful tool for discriminating coloured inks in inkjet printer cartridges of different brands. 相似文献
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目的建立饮料、血、尿中 11种常见苯并二氮类药物及尿中 7种主要代谢物的薄层色谱分析法(HPTLC)。方法分析物采用GDX10 1树脂进行固相萃取 ,乙醚作为洗脱溶剂。苯 :丙酮 (10∶6)等作为展开体系 ,改良碘化铋钾显色。结果所建方法绝对灵敏度 0 3~ 0 6μg,尿检出限 0 4~ 1 0 μg/ml、血检出限 0 6~ 1 0 μg/ml、饮料检出限 0 4~ 0 8μg/ml。结论HPTLC法简便、快速 ,适合作为常规毒物分析方法 相似文献
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目的用薄层色谱法鉴别口红,选择最佳展开剂,以达到理想的分离鉴别效果。方法利用数理统计中的均匀设计法和正交设计法安排实验,优选出薄层色谱法检验口红的最佳展开剂体系为二氧六环:正丁醇:水=12:5:0.5,并对49种口红样品进行了分析检验。结果该展开剂体系对口红的检验具有较好的分离效果。 相似文献
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大麻的体内代谢物THC—COOH的分析 总被引:2,自引:1,他引:2
本文介绍了定性定量分析大麻的主要代谢物THC-COOH的两种方法。所有试管硅烷化,尿样碱性水解。TLC法快速、简便,适用于多份检材的同时定性分析,最低检测限为50ng.采用衍生化、SIM的GC/MS方法灵敏,选择性、专一性强.五氟丙酸酐衍生化方法线性范围为20-250ng/ml,最低检测限10ng/ml,变异系数为8.4%,提取回收率为58.9%;甲基化方法线性范围10~100ng/ml,最低检测限5ng/ml,变异系数为5.6%,提取回收率为53.2%. 相似文献
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建立伊痛舒口服液的含量测定方法。方法:采用薄层扫描法对伊痛舒口服液中阿魏酸进行定量。结果:阿魏酸在0.9-5.6μg呈良好的线性关系,平均回收率为98.86%。,结论:该方法简便,灵敏,准确,可作为伊痛舒口服液质量控制的方法。 相似文献