共查询到20条相似文献,搜索用时 15 毫秒
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Mennickent Sigrid Mario Vega M. Mario Vega H. De Diego Marta Fierro Ricardo 《平面色谱法杂志一现代薄层色谱法》2012,25(1):54-59
JPC – Journal of Planar Chromatography – Modern TLC - A high-performance thin-layer chromatography (HPTLC) method for the quantification of propranolol in human serum is developed and... 相似文献
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《液相色谱法及相关技术杂志》2012,35(10):1909-1919
Abstract A densitometric reversed-phase thin-layer chromatographic(RP-TLC) method for the determination of digitalis glycosides in Digitalis purpurea leaves has been developed. The procedure involves extraction of dry leaf powder with ethanol/chloroform (2:1) and clean-up by Sep-Pak cartridges prior to RP-TLC analysis. RP-TLC was performed on an octadecylsilyl bonded silica gel plate, using a developing solvent of acetonitrile/0.5 M NaCl(1 : 1) for secondary glycosides and acetonitrile/0.5 M NaCl(2 : 3)for primary glycosides. The plate was scanned with a reflectance densitometer at 222 nm. Quantitation of these glycosides was carried out by the internal standard method. The amounts of digitoxin, gitoxin, gitaloxin, purpurea glycoside A, purpurea glycoside B, and glucogitaloxin in a leaf powder sample of Digitalis purpurea were estimated from the calibration graphs for pure glycosides. 相似文献
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《液相色谱法及相关技术杂志》2012,35(19):3591-3602
Abstract The determination of three common citrus fungicides, diphenyl (DP), o-phenylphenol (oPP) and thiabendazole (TBZ), was investigated with reversed-phase high-performance liquid chromatography. DP and oPP were successfully chromatographed and quantitated by utilizing a reversed-phase Unisil Q C18 column after extraction with an essential oil distillation apparatus. An acetonitrile-0.1M H3PO4 (55:45) mobile phase was used. TBZ was chromatographed by using a Unisil Q C8 column with a mobile phase of acetonitrile-0.1M H3PO4 (80:20) after the extraction with ethyl acetate. The fungicides were detected with fluorescence detection at typical residue levels on citrus. The 相似文献
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JPC – Journal of Planar Chromatography – Modern TLC - A high-performance thin-layer chromatographic method with densitometric detection has been used to determine the convallatoxine... 相似文献
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JPC – Journal of Planar Chromatography – Modern TLC - The discovery of the implication of free radicals in the etiology of many diseases has led to increased interest in functional food... 相似文献
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JPC – Journal of Planar Chromatography – Modern TLC - 相似文献
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JPC – Journal of Planar Chromatography – Modern TLC - A simple and highly sensitive method is developed for the determination of streptomycin in dosage forms and in biological fluids... 相似文献
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Skalicka-Woźniak Krystyna Hajnos Michał Łukasz Głowniak Kazimierz 《平面色谱法杂志一现代薄层色谱法》2009,22(4):297-300
JPC – Journal of Planar Chromatography – Modern TLC - High-performance thin-layer chromatography with densitometric detection has been used for quantitative analysis of chlorogenic acid... 相似文献
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Pavlović Dragana Mutavdžić Kraljević Tatjana Gazivoda Pavić Romana Mrđa Jasna 《平面色谱法杂志一现代薄层色谱法》2019,32(5):421-429
JPC – Journal of Planar Chromatography – Modern TLC - The presented study describes the development, optimization, and validation of a method for the determination of four structurally... 相似文献
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Gholamian Forouzan Chaloosi Marzieh Husain Syed Wagif Dehghani Hossein 《平面色谱法杂志一现代薄层色谱法》2001,14(4):296-299
JPC – Journal of Planar Chromatography – Modern TLC - High-performance thin-layer chromatography (HPTLC) has been used for separation and quantitation of components of high explosives... 相似文献
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JPC – Journal of Planar Chromatography – Modern TLC - High-performance thin-layer chromatography (HPTLC) on silica gel 60 F254 TLC plates, with ethyl acetate-methanol-acetone-acetic... 相似文献
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JPC – Journal of Planar Chromatography – Modern TLC - This paper describes a validated high-performance thin-layer chromatography (HPTLC) method for the simultaneous determination of... 相似文献
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薄层扫描法分离和测定苯氧乙酸和2,4-二氯苯氧乙酸 总被引:5,自引:0,他引:5
苯氧乙酸及其衍生物对植物有很强的生物活性,是一类药性高、选择性好、使用安全的化学除草剂,因此,被农田广泛应用.其中2,4-二氯苯氧乙酸(简称2,4-D)是最为常用的一种.虽然这类化合物的毒性较小,但在土壤、粮食、环境水中的残留,也会对动植物构成不同程度的危害.因此,对苯氧乙酸类除草剂的分离和测定方法的研究,对于保护人类的健康和生态平衡具有重要的意义.目前,国内尚未见到有关这方面的研究报道.我们采用薄层色谱法,同时分离和测定了苯氧乙酸和2,4-D,灵敏度高,操作简便、快速. 相似文献
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JPC – Journal of Planar Chromatography – Modern TLC - A new, simple, accurate, and precise high-performance thin-layer chromatographic (HPTLC) method has been developed for the... 相似文献
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《液相色谱法及相关技术杂志》2012,35(7):1393-1402
Abstract A screening thin layer chromatography (TLC) technique has been developed that can be done in the field. Quantitative analysis by TLC densitometry can be done in a laboratory (or field van). A densitometer is needed for quantitative work by TLC. An Apple computer may be added to use as a computational device. Semi-quantitative results may be obtained by visual comparisons. Confirmations may be made by silver halide visualization on TLC. Dehalogenation with sodium biphenyl, chlorination with antimony pentachloride, or mass spectral confirmation may be used. Quantitative analysis is possible of the derivatized positive samples. 相似文献
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《液相色谱法及相关技术杂志》2012,35(6):797-808
Abstract A survey is presented concerning the possible techniques of quantitative thin-layer chromatography. Most of the possibilities mentioned have been used successfully in our laboratory for the determination of drugs and metabolites in plasma. With respect to our own experience, the advantages and disadvantages of quantitative thin-layer chromatography are discussed. Although gas chromatography and high-performance liquid chromatography are more popular, quantitative thin-layer chromatography has a high potential in the analysis of drugs in samples of biological origin and should not be neglected in the development of an assay. 相似文献