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Search Results for "Thc Cooh Urine Lcms Assay"

01:49 EDT 20th April 2014 | BioPortfolio

Original Source: LC-MS-MS method for simultaneous determination of THCCOOH and THCCOOH-glucuronide in urine: Application to workplace confirmation tests.

Cannabis is the one of the most frequently detected drug in workplace drug testing and in cases of driving under influence of drugs, and there is a greater demand for sensitive, rapid and reliable methods for confirming the presence of this drug in biological samples. This paper describes an LC-MS-MS procedure for direct analysis of cTHC and cTHC-glucuronide in urine, without hydrolysis of the samples or derivatisation. The sample preparation is very simple and consist only in a dilution of urine with metha...

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BRCA MASTR Dx

The BRCA MASTR Dx is a molecular diagnostic assay for the identification of mutations in the coding regions of the BRCA 1&2 genes in individuals with increased risk for breast, ovarian and/or re...

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MS Syringe Filter Certified for Low LCMS Extractables in Small Samples

Pall introduced a 13 mm Acrodisc MS syringe filter certified for low extractables in high performance liquid chromatography/mass spectrometry (LCMS) applications. The new 13 mm size, which is designed...

Shimadzu Registers HPLC and LCMS Instruments as Class I Medical Devices With Food and Drug Administration

The following Shimadzu instruments have been registered as Class I medical devices: LC-20 CL and LC-30 CL HPLCs, single-quad LCMS-2020 CL, triple-quad LCMS-8030 CL, LCMS-8040 CL and LCMS-8050 CL. Colu...

Contaminated Urine Samples Used to Diagnose STIs

By violating multiple standards for clean urine collection, it's possible to contaminate urine samples with agents of sexually transmitted infections (STIs), researchers from Australia report. Reute...

EZ-P Enables Female Users to Give Urine Samples More Conveniently - Designed by InventHelp Client (DLL-2593)

Pittsburgh, PA (PRWEB) December 07, 2013 An inventor from Grand Prairie, Texas, has had enough of the inconvenience associated with giving urine specimens. "Tired of urinating on my hand when...

Six random specimens of daytime casual urine on different days are sufficient to estimate daily sodium/potassium ratio in comparison to 7-day 24-h urine collections

Urine Culture Updates Approach to Diagnosing Infection

The cause of acute uncomplicated cystitis is determined based on cultures of voided midstream urine, but few data guide the...

Bladder cancer in women

A 76 year old woman reports recurrent urinary frequency, dysuria, and malodorous urine. No bacterial growth has been identified on two midstream urine samples, though empirical treatment with...

Urine test may help diagnose cancer

A simple urine test may be able to distinguish between aggressive and low-grade bladder cancers, allowing doctors to tailor personalised treatments, say scientists.

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Estimation of Measurement Uncertainty for the Quantification of 11-Nor-Delta 9-Tetrahydrocannabinol-9-Carboxylic Acid and Its Glucuronide in Urine Using Liquid Chromatography-Tandem Mass Spectrometry.

Recently, the estimation of the measurement uncertainty has become a significant issue in the quality control of forensic drug testing. In the present study, the uncertainty of the measurement was cal...

Sensitive and selective plasmonic assay for spermine as biomarker in human urine.

A simple, fast, and highly selective and sensitive colorimetric assay to detect nanomolar levels of spermine in human urine (healthy donors, cancer patients) is reported. This assay is based on the ab...

Improvement and Validation of d-Xylose Determination in Urine and Serum as a New Tool for the Noninvasive Evaluation of Lactase Activity in Humans.

The phloroglucinol assay is the current method for d-xylose determination in urine/plasma/serum. However, its sensitivity is limited when low amounts of d-xylose are to be measured, such as in the non...

Development of a Loop-Mediated Isothermal Amplification Method for Detection of Histoplasma capsulatum DNA in Clinical Samples.

Improved methods for the detection of Histoplasma capsulatum are needed in regions with limited resources in which the organism is endemic, where delayed diagnosis of progressive disseminated histopla...

Stability of chemical communicants in urine: Individual identity and age of sample.

Male guinea pigs differentiated between fresh female urine and the same urine aged for 3 hr. Additionally, when tested with an habituation paradigm, they exhibited no evidence of recognizing fresh uri...

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