共查询到20条相似文献,搜索用时 15 毫秒
1.
JPC – Journal of Planar Chromatography – Modern TLC - Sida spinosa Linn. (synonyms: S. alba L., S. angustifolia Lam., S. angustifolia Mill.), Malvaceae, is an annual erect, branched... 相似文献
2.
JPC – Journal of Planar Chromatography – Modern TLC - A sensitive and accurate high-performance thin-layer chromatographic method has been developed, validated, and used for... 相似文献
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JPC – Journal of Planar Chromatography – Modern TLC - Because of the increasing importance of Ficus bengalensis as a potent antidiabetic herbal drug, detailed chemical and analytical... 相似文献
4.
A simple, precise and accurate high-performance thin-layer chromatographic method has been established for the determination of rutin in the whole plant powder of Amaranthus spinosus Linn. Rutin has been reported to have anti-diabetic, anti-thrombotic, anti-inflammatory and anti-carcinogenic activity. A methanol extract of the whole plant powder was used for the experimental work. The concentration of rutin in the whole plant powder was found to be 0.15%. Separation was performed on silica gel 60 F 254 HPTLC plates with ethyl acetate:formic acid:methanol:distilled water in the proportion 10:0.9:1.1:1.7 ( v/v), as mobile phase. The determination was carried out using the densitometric absorbance mode at 363 nm. Rutin response was linear over the range 10–60 μg mL ?1. The HPTLC method was evaluated in terms of sensitivity, accuracy, precision and reproducibility. 相似文献
5.
JPC – Journal of Planar Chromatography – Modern TLC - A selective high-performance thin-layer chromatographic (HPTLC) method for the quantification of vitamin D3 was developed and... 相似文献
6.
Glycyrrhiza glabra Linn., commonly known as liquorice, is a reputed drug of Ayurveda. In the present work we developed and validated densitometric methods for quantification of glycyrrhizin, glycyrrhetinic acid, apigenin, kaempferol and quercetin using HPTLC. The developed methods were found to be precise and accurate. The amount of glycyrrhizin, glycyrrhetinic acid, and quercetin was found to be 1.070, 0.84 and 0.271% w/w, respectively. Apigenin and kaempferol were quantified in free (0.007 and 0.033% w/w) as well as bound (0.021 and 0.074% w/w) forms. This is the first report of simultaneous quantification of glycyrrhetinic acid and apigenin as well as kaempferol and quercetin from G. glabra. Furthermore, no TLC densitometric methods have been reported for the quantification of apigenin, kaempferol and quercetin from G. glabra.
相似文献
7.
Glycyrrhiza glabra Linn., commonly known as liquorice, is a reputed drug of Ayurveda. In the present work we developed and validated densitometric methods for quantification of glycyrrhizin, glycyrrhetinic acid, apigenin, kaempferol and quercetin using HPTLC. The developed methods were found to be precise and accurate. The amount of glycyrrhizin, glycyrrhetinic acid, and quercetin was found to be 1.070, 0.84 and 0.271% w/w, respectively. Apigenin and kaempferol were quantified in free (0.007 and 0.033% w/w) as well as bound (0.021 and 0.074% w/w) forms. This is the first report of simultaneous quantification of glycyrrhetinic acid and apigenin as well as kaempferol and quercetin from G. glabra. Furthermore, no TLC densitometric methods have been reported for the quantification of apigenin, kaempferol and quercetin from G. glabra. 相似文献
8.
Luteolin, a flavonoid, is reported to occur widely in many medicinal plants. It has been shown to have important biological activities. We report sensitive HPTLC method for the quantification of luteolin from plant material. The method was validated for precision, repeatability and accuracy. The method was found to be precise with RSDs for intraday in the range of 0.77–1.29% and inter–day in the range of 1.02–2.08%. Instrumental precision and repeatability of the method were found to be 0.39 and 0.57 (%CV). Accuracy of the method was checked by recovery study conducted at two different levels and the average percentage recovery was found to be 100.92%. The method was used for quantification of luteolin in three important herbal drugs viz. fruit of Cuminum cyminum, whole plant of Bacopa monnieri, flower of Achillea millefolium. The proposed HPTLC method for the quantification of luteolin was found to be simple, precise, specific, sensitive and accurate and can be used for quality control of raw materials.Revised: 1 October 2003 and 18 February 2004 相似文献
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JPC – Journal of Planar Chromatography – Modern TLC - Starch is widely distributed in diverse plant organs as a reserve carbohydrate; it is also a major source of carbohydrates in human... 相似文献
10.
JPC – Journal of Planar Chromatography – Modern TLC - A sensitive and reliable high-performance thin-layer chromatographic (HPTLC) method has been developed for the quantitative... 相似文献
11.
JPC – Journal of Planar Chromatography – Modern TLC - Thin-layer chromatography is a rapid and reliable working method for quantification of mycotoxins which is suitable for checking EC... 相似文献
12.
JPC – Journal of Planar Chromatography – Modern TLC - A new HPTLC method has been developed for identification and quantification of folic acid, N-[4-{[(2-amino-4-hydroxy-6-pteridynyl)... 相似文献
13.
JPC – Journal of Planar Chromatography – Modern TLC - India is the main producer of palmarosa oil obtained from rosha grass (Cymbopogan martini var. motia) of family Graminae. The... 相似文献
14.
Abstract A simple, sensitive, reliable, and rapid HPTLC method has been developed for the determination of pitavastatin calcium in tablet dosage form. Identification and determination were performed on aluminum backed silica gel 60F 254 washed with methanol. The mobile phase of ethyl acetate‐methanol‐ammonia‐1 drop formic acid (7:2:0.8) calibration plots were established showing the dependence of response (peak area) on the amount chromatographed. The spot were scanned at 245 nm. The method has a linear range of 50–250 ng/spot. The method was validated for selectivity, repeatability, and accuracy. The method was used for determination of the compound in commercial pharmaceutical dosage forms. It is a more effective option than other chromatographic techniques in routine quality control. 相似文献
15.
JPC – Journal of Planar Chromatography – Modern TLC - A simple, rapid, and precise high-performance thin-layer chromatographic method has been established for quantitative analysis of... 相似文献
16.
JPC – Journal of Planar Chromatography – Modern TLC - A selective and simplest possible high-performance TLC (HPTLC) method for quantification of oenothein B on the basis of the free... 相似文献
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JPC – Journal of Planar Chromatography – Modern TLC - For the first time a simple, sensitive, rapid, precise and accurate HPTLC method has been established for quantification of... 相似文献
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JPC – Journal of Planar Chromatography – Modern TLC - A densitometric HPTLC method has been established for simultaneous quantification of sennosides A and B and gallic acid in a... 相似文献
19.
JPC – Journal of Planar Chromatography – Modern TLC - A sensitive high-performance thin-layer chromatographic (HPTLC) method has been developed for estimation of amentoflavone, an... 相似文献
20.
JPC – Journal of Planar Chromatography – Modern TLC - Adensitometric HPTLC method has been established for analysis in alcohol extracts of the seeds and leaves of Achyranthes aspera L.... 相似文献
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