Fast screening procedure for antibiotics in wastewaters by direct HPLC-DAD analysis
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چکیده
منابع مشابه
hydrochlorothiazide detection in urine samples by hplc-dad and experimental design dispersive l-l microextraction
hydrochlorothiazide (hct) is a diuretic agent which is shown to be effective in the treatment of hypertension. literature reports have demonstrated that urinary excretion data may be used to assess the bioavailability of various formulations containing this thiazide. also hct consumption by the athletes is one of the drugs which should be regulated by world anti-doping agency (wada), because of...
Screening for cytotoxic chemical constituents from Justicia procumbens by HPLC–DAD–ESI–MS and NMR
BACKGROUND The Acanthaceae family is an important source of therapeutic drugs and ethno medicines. There are many famous medicinal plants from this family, such as Andrographis paniculata, Baphicacanthus cusia, and Dicliptera chinensis. Justicia procumbens (J. procumbens) is widely distributed in tropical and sub-tropical of the world. It has long been used in traditional Chinese medicine for c...
متن کاملDifferentiation of Cuscuta chinensis and Cuscuta australis by HPLC-DAD-MS analysis and HPLC-UV quantitation.
Cuscuta chinensis and Cuscuta australis, the two botanical sources of the Chinese herbal medicine Tu-Si-Zi, were distinguished from each other based on qualitative and quantitative chemical analysis. By HPLC‑DAD‑MS, a total of 36 compounds were characterized from these two Cuscuta species, including 14 flavonoids, 17 quinic acid derivatives, and 5 lignans. In addition, HPLC‑UV was applied to de...
متن کاملQuantification of Caffeoylquinic Acids in Coffee Brews by HPLC-DAD
The influence of different brewing conditions on the concentration of the main caffeoylquinic acids (3-caffeoylquinic acid (3-CQA), 4-caffeoylquinic acid (4-CQA), and 5-caffeoylquinic acid (5-CQA)) was investigated. For this purpose, twenty-four coffee brews were extracted and analyzed using HPLC-DAD at 325 nm. Our findings demonstrate the great impact of brewing techniques on the caffeoylquini...
متن کاملNew Automated Screening System for the Determination of Basic Compounds in Urine by On-Line Extraction-HPLC- DAD
A new automated, qualitative screening HPLC method for the identification of basic compounds in urine has been established. A 1-ml volume of urine was automatedly extracted online and separated on two coupled strong cation-exchange columns under isocratic conditions. The use of the photodiode-array detector (DAD, λ=190-370 nm) gave access to a library of more than 2600 toxicologically relevant ...
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ژورنال
عنوان ژورنال: Journal of Separation Science
سال: 2008
ISSN: 1615-9306,1615-9314
DOI: 10.1002/jssc.200800229