PAH Analysis by High-Pressure Liquid Chromatography
(HPLC) with Fluorescence Detector.
The advanced methods for organism identification include high-pressure liquid chromatography
and genotypic methods like sequencing of unique 16S rRNA.
(6-9) The present preliminary study was conducted to (1) provide information on the temporal association between fatal peptic ulcer disease presenting as sudden death and NSAID use prior to death, and (2) to examine the diagnostic efficiency of postmortem determination of NSAID levels using high-pressure liquid chromatography
(HPLC) on autopsy blood samples.
The American Organization of Agricultural Chemists, for example, recently approved a method that uses an antibody to bind aflatoxin to a matrix in an affinity column, then removes it from the antibody and quantifies, using high-pressure liquid chromatography
. This method solved the sample-preparation problem that had caused aflatoxin test results to swing widely, leading to a lot of arbitration between grain buyers and grain sellers.
First, Daly separated the alkaline components from one another using high-pressure liquid chromatography
. Then he used mass spectrometry to determine the size of the molecules in the component that made the mouse arch its tail.
Using high-pressure liquid chromatography
, USDA-ARS researchers examined the phenolic compounds in leaf, flavedo, albedo and juice vesicle tissues of 35 species of citrus (Rutaceae).
Chitwood's test, which was developed at the ARS Nematology Laboratory in Beltsville, Maryland, is a modification of a method called reversed-phase high-pressure liquid chromatography
. With fewer steps than present techniques, the new one takes as little as 30 minutes.
Epidermal retinoid and beta-carotene concentrations were determined by high-pressure liquid chromatography
. Topical beta-carotene penetrated well into human and mouse epidermis and induced a 10-fold (human) and a threefold (mouse) increase of epidermal retinyl esters, which demonstrates that topical beta-carotene is converted into retinyl esters by human and mouse epidermis and thus appears as a precursor of epidermal vitamin A.
High-pressure liquid chromatography
revealed two or perhaps three proteins within the sample, they report.
Analytical methodologies employing high-pressure liquid chromatography
, nuclear magnetic resonance, mass spectrometry and electrophoretic techniques for the assessment of product integrity are being developed by Michel Girard, MCIC.
Chromatographic system for high-pressure liquid chromatography
with a diode-matrix UV detector
Comparison of Sebia CAPILLARYS Capillary Electrophoresis with the Primus High-Pressure Liquid Chromatography
in the Evaluation of Hemoglobinopathies.