Analytical Chemistry

[Technical Report] Development of a Fully Automated Analytical Method for PFOA, PFOS, and PFHxS in Water Using an Online SPE-LC/MS System

This article was written by Ryoichi Sasano, AiSTI SCIENCE CO., Ltd., for Vol. 28, (January 2024) of ChemGrowing.

Perfluorooctanoic acid (PFOA), perfluorooctane sulfonic acid (PFOS), and perfluorohexane sulfonic acid (PFHxS) are widely used in daily life as processing aids for fluoropolymers, paints, water repell...

Read More

Analytical Chemistry

The Story of the Development of CTX-ELISA 1B

The original article was written by Masahiro Hirama, Professor Emeritus of Tohoku University, and Acroscale Ltd. (Glytech, Inc.) for Vol. 07 (December 2018) of ChemGrowing.
This article has been translated from the above Japanese version by Fujifilm Wako.

Scientific research, chemistry in particular, originates from "curiosity and ambition" to "create or discover" "something interesting," and makes great progress when "time, advantage of position, and ...

Read More

Analytical Chemistry

Risk Assessment and Control in the Guideline for Elemental Impurities in Drugs

The original article by Rina Nishioka, Soichiro Hanakawa of the Sumika Chemical Analysis Service, Ltd., appeared in an e-newsletter of FUJIFILM Wako Pure Chemical Corporation and was translated by the company.

A regulatory guideline for elemental impurities in drug products was formulated by the International Council for Harmonisation of Technical Requirements for Pharmaceuticals for Human Use (ICH). In Jap...

Read More

Analytical Chemistry

Effects of Trace Metals (Impurities) in Chemicals Used in Semiconductor Manufacture and Their Analysis

The original article by Yukihisa Kawada of the FUJIFILM Corporation, appeared in an e-newsletter of FUJIFILM Wako Pure Chemical Corporation and was translated by the company.

In recent years, the manufacturing process for semiconductors has become increasingly complex in order to meet the technical requirements for smaller size and higher performance. In this situation, qu...

Read More

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...

Read More