Wako Blog

We introduce a wide range of topics of research, technical reports, tips on experiments and so on.

Talking of LAL

Talking of LAL

What We Need to Know in a Recovery Test

This article was written by Dr. Masakazu Tsuchiya, FUJIFILM Wako Pure Chemical Corporation, for Vol. 64, No. 2(April 1996) 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.

We often get these questions that need to be addressed when performing an endotoxin recovery test: 1) whether is it necessary to classify and distinguish the effects of a sample, and 2) what type of e...

Talking of LAL

What is the Purpose of an Endotoxin Recovery Test?

This article was written by Dr. Masakazu Tsuchiya, FUJIFILM Wako Pure Chemical Corporation, for Vol. 64, No.1 (January 1996) 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.

Inhibition and enhancement testing are required for validation of endotoxin test. A recovery test is performed for inhibition and enhancement testing, whereby a sample containing a known amount of end...

Talking of LAL

What is the Detection Limit of Endotoxin in Water?

This article was written by Dr. Masakazu Tsuchiya, FUJIFILM Wako Pure Chemical Corporation, for Vol. 63, No. 4 (October 1995) 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.

The LAL test for the measurement of endotoxins was developed primarily to ensure the safety of pharmaceuticals. For example, the allowable endotoxin limit for water for injection is 0.25 EU/mL, but th...

Talking of LAL

Pyrosep™ Method

This article was written by Dr. Masakazu Tsuchiya, FUJIFILM Wako Pure Chemical Corporation, for Vol. 63, No. 3 (July 1995) 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.

PyrosepTM is a material which contains histidine molecules bound to an appropriate carrier via spacer molecules and is used mainly in the process of endotoxin removal. PyrosepTM (manufactured by Tanab...

Talking of LAL

Es-Eapp Plot

This article was written by Dr. Masakazu Tsuchiya, FUJIFILM Wako Pure Chemical Corporation, for Vol. 63, No.2 (April 1995) 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.

It is important to understand how a sample may affect the results of the LAL test. A sample used in an inhibition test may also contain endotoxin, which could reduce the accuracy of endotoxin recovery...

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