کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5134967 | 1493407 | 2017 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The reciprocal iso-inhibition volume concept: A procedure for the evaluation in effect-directed analysis with thin-layer chromatography - using the thin-layer chromatography-luminescent bacteria assay as an example
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کلمات کلیدی
INHAliivibrio fischeriRIVTEQAMDHPTLCEDAProbability - احتمالات، احتمالInhibition - بازداریEffect-directed analysis - تجزیه و تحلیل اثر مستقیمEnvironmental analysis - تجزیه و تحلیل محیطیautomated multiple development - توسعه چندگانه خودکارAbsorption - جذبVolume - جلدRelative sensitivity - حساسیت نسبیSlope - شیبEffect concentration - غلظت اثرRetention factor - فاکتور نگهداریInhibition zone - منطقه مهارSample - نمونه
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
In effect-directed analysis (EDA) with high-performance thin-layer chromatography (HPTLC), the effect is often detected using images. Thus, an approach to create inhibition chromatograms from these images was developed using the example of the HPTLC- bioluminescence inhibition test. A comparison between the cuvette test and the HPTLC test shows that the test on the plate is significantly more sensitive. To describe the strength of the effect, the EC50 value is determined from the dose-response relationship. However, the inhibiting compounds are generally unknown and thus their concentrations are also unknown. Therefore, instead of the concentration, the known application volumes are used. This enables the calculation of the application volume necessary to achieve 50% inhibition. Since the volume is inversely proportional to the concentration, the reciprocal value of the calculated volume is indicated and is referred to as the reciprocal iso-inhibition volume (RIV). Using this RIV-concept, it is now possible to compare inhibition bands within and between plates. The entire evaluation is described by the means of two samples from a contaminated site using the bioluminescence inhibition.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Chromatography A - Volume 1519, 13 October 2017, Pages 121-130
Journal: Journal of Chromatography A - Volume 1519, 13 October 2017, Pages 121-130
نویسندگان
Wolfgang Schulz, Stefan C. Weiss, Walter H. Weber, Rudi Winzenbacher,