نتایج جستجو برای: ultraviolet detector hplc

تعداد نتایج: 129409  

Journal: :African journal of traditional, complementary, and alternative medicines : AJTCAM 2012
Makhotso Lekhooa Andrew Walubo Jan J B Du Plessis Motlalepula C Matsabisa Duduzile Molefe

PHELA is a herbal mixture of four African traditional medicinal plants that has been used for decades in wasting conditions and is now being developed by the Medical Research Council (MRC) as an immune booster for patients with compromised immune system. A chromatographic fingerprint of PHELA was needed for quality control purposes. Here, a comprehensive method for fingerprinting of PHELA using...

Journal: :Journal of agricultural and food chemistry 2001
W C Byrdwell W E Neff G R List

Several margarine base stock candidates have previously been prepared for the purpose of finding better, more oxidatively stable food components: high-saturate vegetable oils, randomized vegetable oils, vegetable oil-hard stock blends, and interesterified vegetable oil-hard stock blends. Here are reported the triacylglycerol compositions of these products, determined using reverse-phase high-pe...

Journal: :Reviews in Analytical Chemistry 2021

Abstract This manuscript is a critical review of the analytical methods reported in existing literature for determination mycotoxin patulin at trace/ultra-trace levels food matrices. The article starts focusing on what mycotoxins are, their “analytical history” (more than 21,000 articles published Scopus database): each specific given fungus and shows toxic effects, some even being carcinogenic...

Journal: :The Analyst 2006
Martina O'Toole King-Tong Lau Benjamin Shazmann Roderick Shepherd Pavel N Nesterenko Brett Paull Dermot Diamond

A novel low power, low cost, highly sensitive, miniaturized light emitting diode (LED) based flow detector has been used as optical detector for the detection of sample components in high performance liquid chromatography (HPLC). This colorimetric detector employs two LEDs, one operating in normal mode as a light source and the other is reverse biased to work as a light detector. Instead of mea...

2000
S. Hillert R. Ischebeck U. C. Müller K. Hansen P. Holl S. Karstensen J. Kemmer R. Klanner M. Leenen J. S. T. Ng

Test measurements on the silicon pixel detector for the beam trajectory monitor at the free electron laser of the TESLA test facility are presented. To determine the electronic noise of detector and read-out and to calibrate the signal amplitude of different pixels the 6 keV photons of the manganese Kα/Kβ line are used. Two different methods determine the spatial accuracy of the detector: In on...

Journal: :Acta poloniae pharmaceutica 2012
Elzbieta Kublin Ewa Malanowicz Barbara Kaczmarska-Graczyk Aleksander P Mazurek

Hyperlipidemia (HLP) is a group of lipid metabolism disorders with various pathogenesis. Its characteristic feature is an increase in cholesterol level, especially the low density lipoprotein fraction (LDL) level or triglyceride level in blood. An increase in total and LDL cholesterol level is related to the increased risk of ischemic heart disease as well as cerebral, coronary and peripheral c...

Journal: :International Journal of Applied Pharmaceutics 2022

Objective: Acrylamide is a carcinogenic compound that can be found in commonly consumed foods and cigarette smoke. This metabolized by cytochrome P450 the human body to more reactive metabolite, glycidamide. study aimed optimize validate sensitive HPLC-UV method for determining acrylamide glycidamide simultaneously volumetric absorptive microsampling (VAMS) sample. Methods: Isoniazid as an inte...

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