http://www.chromatographyonline.com/lcgc/data/articlestandard/lcgc/242005/164646/article.pdf
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http://www.sciencelab.com/msds.php?msdsId=9927393
http://www.sciencelab.com/msds.php?msdsId=9927335
https://www.sciencelab.com/msds.php?msdsId=9927227
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