Analytical Chemistry

Arsenic compounds contained in various foods

Arsenic (As) is an element occurring in the Earth's crust mainly as sulfides such as As3S3, As4S4, and FeAsS. Because it is released into the environment through natural phenomena such as volcanic act...

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Analytical Chemistry

Precautions in Pre-treatment of Environmental Water Samples by Chelating Resin Preconcentration Method

The original article by Dr. Eiji Fujimori of the National Environmental Research and Training Institute, Ministry of the Environment, appeared in an e-newsletter of FUJIFILM Wako and was translated by the company.

Inductively coupled plasma mass spectrometry (ICP-MS) is capable of simultaneous analysis of multiple elements at extremely low levels and is the most sensitive elemental analysis method among common ...

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Analytical Chemistry Technical Report

[Chromatography Q & A]: What Methods are Available for LC/MS Analysis of Highly Polarized Analytes?

This article was written for No. 42 (October 2006), of Analytical Circle.

For columns used in LC/MS, highly versatile reverse-phase octadecyl-silica gel (C18, ODS) is a mainstay packing agent. This ODS packing agent, however, has difficulty in separating a particular type o...

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• chromatography

Analytical Chemistry Technical Report

[Technical Report] Analysis of Veterinary Drugs, Tiamulin and Robenidine, Using Wakopak^® Wakosil-II 5SIL-AQ

This article was written by Ms. Kimiko Yoshida, FUJIFILM Wako Pure Chemical Corporation, for Vol. 74 No. 3 (July 2006), of Wako Junyaku Jiho.
The content of this article is from the time of publication. It is not the latest information due to new knowledge and changes in regulatory rules after original publication.

Widespread proliferation of liquid chromatography-mass spectrometry (LC/MS) analysis has made LC/MS-compatible solvents, reagents, and analytical columns commercially available. For the analytical col...

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• chromatography
• experimental data

Analytical Chemistry Technical Report

[Chromatography Q & A]: Change into Simple Analytical Condition Using Smaller Volume of Solvent; Change of Column Size from 4.6 mmφ to 3.0 mmφ

This article was written for No. 52 (March 2009), of Analytical Circle.

When the column size is changed from 4.6 to 3.0 mm in internal diameter (I.D.), and the flow rate is reduced by half, the solvent volume can be reduced. Although analysis time is not reduced, such cha...

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• chromatography