More Sensitive Analysis of Hexavalent Chromium in Water and Soil Extracts (Webinar)

submitted by: Chrom Solutions
This webinar describes the modifications that increase the method sensitivity limit for chromate to 0.001 μg/L, which is more than sufficient for the proposed California PHG. In addition, we will discuss results from NIST standards and various soil extracts from round robin studies using Cr(VI) contaminated soils. Speakers: Stuart Nagourney (NJ Department of Environmental Protection), Kirk Chassaniol (Thermo Fisher Scientific). Visit for details.

EPA 525.2 for the Analysis of Organic Contaminants in Water (Webinar)

submitted by: Chrom Solutions
This webinar reviews EPA Method 525.2 (SPE-GC-MS method) for the analysis of organic contaminants in drinking water. In order to achieve the low detection limits, water samples are extracted and concentrated prior to injection into the GC-MS. Automated systems remove the laborious, less accurate steps of vacuum systems and at the same time, save solvent and cost less overall. Speakers: Beau Sullivan (Santa Clara Valley Water District), Richard Jack (Thermo Fisher Scientific). Visit...

New Approaches for Analysis of Amino Acids by Liquid Chromatography (Webinar)

submitted by: Chrom Solutions
The focus of this webinar is to help laboratories evaluate different approaches to high-speed amino acid analysis with liquid chromatography with regard to speed of analysis, sample preparation requirements, matrix elimination requirements, sensitivity, and cost per analysis. Examples from nutrition science and fermentation technology are discussed. Speakers: Andreas Dunkel (Technische Universität München), Frank Steiner (Thermo Fisher Scientific). For more information, visit:...

In Search of the Next Wonder Drug: Natural Product, Botanical & Nutraceutical Analysis (Webinar)

submitted by: Chrom Solutions

This webinar presents two HPLC detection techniques for the measurement of specific analytes in botanicals and dietary supplements including the use of metabolite profiles with pattern recognition using electrochemical array detection. Speakers: Mark C. Roman (Tampa Bay Analytical Research, Inc.) and Ian Acworth (Thermo Fisher Scientific).

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Food Safety: IC and LC Analysis of Food and Beverages for Contaminants (Webinar)

submitted by: Chrom Solutions
PepsiCo has developed ion chromatography (IC) and ultra high pressure liquid chromatography (UHPLC) methods to analyze anion and oxyhalide contaminants in water, which are classified as health risks by the World Health Organization. This webinar provides an overview of how to obtain optimal sensitivity and separations when analyzing for food and beverage contaminants and toxic substances. Speakers: Elizabeth Hobbs (PepsiCo), Marcus Martin (Thermo Fisher Scientific), Deepali Mohindra (Thermo...

High-dose cholecalciferol reduces parathyroid hormone in patients with early chronic kidney disease: a pilot, randomized, double-blind, placebo-controlled trial

submitted by: Vin_Tangpricha
Background: Vitamin D deficiency contributes to secondary hyperparathyroidism, which occurs early in chronic kidney disease (CKD). Objectives: We aimed to determine whether high-dose cholecalciferol supplementation for 1 y in early CKD is sufficient to maintain optimal vitamin D status (serum 25-hydroxyvitamin D [25(OH)D] concentration $30 ng/mL) and decrease serum parathyroid hormone (PTH). A secondary aim was to determine the effect of cholecalciferol on blood pressure and serum...
Authors: Jessica Alvarez, Jennie Law, Kathryn Coakley, Susu Zughaier, Li Hao, Khadijeh Salles, Haimanot Wasse, Orlando Gutiérrez, Thomas Ziegler, Vin Tangpricha