Drug detection in biological specimens: recent colorimetric methods

islanding detection methods for microgrids

امروزه استفاده از منابع انرژی پراکنده کاربرد وسیعی یافته است . اگر چه این منابع بسیاری از مشکلات شبکه را حل می کنند اما زیاد شدن آنها مسائل فراوانی برای سیستم قدرت به همراه دارد . استفاده از میکروشبکه راه حلی است که علاوه بر استفاده از مزایای منابع انرژی پراکنده برخی از مشکلات ایجاد شده توسط آنها را نیز منتفی می کند . همچنین میکروشبکه ها کیفیت برق و قابلیت اطمینان تامین انرژی مشترکان را افزایش ...

Recent Advances in the Colorimetric Detection of Cyanide

This short-review discusses the recent developments in the colorimetric detection of cyanide with different types of receptors. Significant progress in terms of selectivity, sensitivity and straightforwardness has been observed for either organic-, main groupor transition metal-based sensors. Our group has developed a simple and highly specific system for the optical sensing of cyanide based on...

Detection and Quantitation of Cannabinoids in Biological Specimens PhD Thesis

Enzymic Digestion of Biological Specimens for Drug Analysis.

In the first part of this paper, procedures using β-glucuronidase for the analysis of drug conjugates in urine are reviewed and compared to the more classical techniques of acid hydrolysis. Morphine-3-β-D-glucuronide is one of the most commonly encountered drug conjugates that may be either acid hydrolyzed or enzyme hydrolyzed to yield free morphine. Because of its rapidity of method and high y...

Melamine modified gold nanoprobe for "on-spot" colorimetric recognition of clonazepam from biological specimens.

Inexpensive, rapid, and reliable methods of detection are crucial to the control of toxicological investigations. Here we report a highly sensitive, selective and cost effective method for the detection of trace amounts of clonazepam based on gold nanoparticles (AuNPs) in the presence of melamine. Hydrogen bonding interactions between clonazepam and melamine resulted in the aggregation of AuNPs...