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Moldy Odor Standards for Water Analysis
Geosmin, 2-Methylisoborneol

The moldy odor produced by environmental pollution in rivers and lakes is generated from the metabolism of various abnormally proliferated actinomycetes and algae.
In particular, Geosmin and 2-Methylisoborneol (2-MIB) show a strong earthy odor (or moldy odor) with even an extremely trace, therefore they are considered to be most responsible for offensive odors in tap water.

The internal standard method was added to the inspection method of Geosmin and 2-MIB by "A matter to amend the part of method specified by Minister of Health, Labour and Welfare (JAPAN) on the basis of the provisions of the ministerial ordinance concerning water quality standards (Ministry of Health, Labour and Welfare Notification No. 66, 2012)" issued on 28th, February in 2012.

This time, we launched a new sales of Geosmin-d3 and 2,4,6-Trichloroanisole-d3, those were the candidate substances as internal standards.


1. Standards, Standard Solutions

Product Name Package Size Wako Catalog No. Grade
Geosmin Standard Solution 20 mg 077-01911 for Water Analysis
Geosmin Standard Solution (0.1 mg/mL Methanol Solution) 1 mL 072-03421
2-Methylisoborneol Standard 20 mg 132-07071
2-Methylisoborneol Standard Solution (0.1 mg/mL Methanol Solution) 1 mL 134-10581
2-Methylisoborneol-Geosmin Mixture Standard Solution
(0.1 mg each / mL Methanol Solution)
1 mL 131-12431

2. Internal Standards

Product Name Package Size Wako Catalog No. Grade
(±)-Geosmin-d3Standard 10 mg 074-05681 for Water Analysis
(±)-Geosmin-d3Standard Solution (1 mg/mL Methanol Solution) 1 mL 072-06081
2,4,6-Trichloroanisole-d3 Standard 50 mg 206-18911
2,4,6-Trichloroanisole-d3 Standard (1 mg/mL Methanol Solution) 1 mL 206-19011

This information may contain products that cannot be exported to your country due to regulations.

3. Related Products

Product Name Package Size Wako Catalog No. Grade
2,4,6-Trichloroanisole Standard 100 mg 209-18901 for Water Analysis
2-Methylisoborneol-d3 Standard Solution (1 mg/mL Methanol Solution) 1 mL 138-12061
Sodium Chloride 500 g 192-10745
Sodium Azide 25 g 195-11092 JIS Special Grade
Presep®-C C18(ODS) 10 pcs x 5 292-32251 for Sample Pretreatment

This information may contain products that cannot be exported to your country due to regulations.

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