منابع مشابه
Papain: a novel urine adulterant.
The estimated number of employees in the United Stated screened annually for illicit drugs is approximately 20 million, with marijuana being the most frequently abused drug. Urine adulterants provide an opportunity for illicit drug users to obtain a false-negative result on commonly used primary drug screening methods such as the enzyme multiplied immunoassay technique and the fluorescence pola...
متن کاملAt-Site Screening and Measurement of Adulterant Levels in Bovine Milk by Mid FTIR Spectroscopy
For this reason, there is signifi cant interest in rapid, easy to use analytical methods that can detect if milk is adulterated and then measure the levels of the adulterants in milk. In a recent publication [1], researchers measured adulterants in milk in the laboratory using the Agilent Cary 630 FTIR spectrometer and showed that the mid FTIR system is superior to NIR spectroscopy for these de...
متن کاملUse of NIR Spectroscopy and Adulterant Screen for the Detection of Common Adulterants in Milk
The value of milk on the open market is linked to its protein content, and standard methods for protein analysis rely on a simple nitrogen assay, with the protein concentration inferred from the nitrogen content. Consequently, the addition of chemicals rich in nitrogen, such as urea, can artificially increase the apparent protein content and thus the price demanded. Urea occurs naturally in mil...
متن کاملIdentification of a new sildenafil analogue adulterant, desethylcarbodenafil, in a herbal supplement.
In a maca-containing herbal supplement claimed to remedy erectile dysfunction, a new sildenafil analogue was found using adulterant screening with TLC, GC-MS and LC-MS/MS. This compound was isolated by column chromatography and HPLC, and identified by extensive 1D- and 2D-NMR and mass spectral analyses. The structure of this new compound was established as 5-[2-ethoxy-5-(piperazine-1-carbonyl) ...
متن کاملBioanalytical methods for quantitation of levamisole, a widespread cocaine adulterant.
Abstract Levamisole is an anthelminthic that was first used as a de-worming agent in humans and animals. It has also been used to treat inflammatory conditions as well as certain types of cancer. Levamisole was discontinued for human use in the early 21st century due to toxic side effects including agranulocytosis and vasculitis. Recently, levamisole was discovered as a cocaine adulterant after...
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ژورنال
عنوان ژورنال: The Analyst
سال: 1897
ISSN: 0003-2654,1364-5528
DOI: 10.1039/an8972200321