A Kitajima, K Maekawa, K Yoshi, H Komatsu, T Tanimoto, S Okada
{"title":"[dl-Camphor Reference Standard (Control 951) of the National Institute of Health Sciences].","authors":"A Kitajima, K Maekawa, K Yoshi, H Komatsu, T Tanimoto, S Okada","doi":"","DOIUrl":null,"url":null,"abstract":"<p><p>The raw material of dl-camphor was examined for the preparation of the \"dl-Camphor Reference Standard\". Analytical data obtained are as follows: ultraviolet spectrum, lambda max = 290 nm; infrared spectrum, the same as that of the present JP Camphor Reference Standard; melting point, 179.6 degrees C; purity test by gas-chromatography (GC), three kinds of impurities were detected; assay by GC, 99.0%. Based on the above results, the candidate raw material was authorized as the JP Reference Standard (Control 951).</p>","PeriodicalId":11656,"journal":{"name":"Eisei Shikenjo hokoku. Bulletin of National Institute of Hygienic Sciences","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"1996-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Eisei Shikenjo hokoku. Bulletin of National Institute of Hygienic Sciences","FirstCategoryId":"1085","ListUrlMain":"","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
The raw material of dl-camphor was examined for the preparation of the "dl-Camphor Reference Standard". Analytical data obtained are as follows: ultraviolet spectrum, lambda max = 290 nm; infrared spectrum, the same as that of the present JP Camphor Reference Standard; melting point, 179.6 degrees C; purity test by gas-chromatography (GC), three kinds of impurities were detected; assay by GC, 99.0%. Based on the above results, the candidate raw material was authorized as the JP Reference Standard (Control 951).