Statistical comparison of mass spectra for identification of amphetamine-type stimulants

详细信息    查看全文

• 作者：Melissa A. Bodnar Willard^a ; ^b ; ¹ ; Victoria L. McGuffin^a ; ^{mcguffin@msu.edu} ; Ruth Waddell Smith^b ; ^{rwsmith@msu.edu}
• 关键词：Controlled substance identification ; Mass spectral comparison ; Gas chromatography&ndash ; mass spectrometry ; Amphetamine-type stimulants
• 刊名：Forensic Science International
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：270
• 期：Complete
• 页码：111-120
• 全文大小：507 K
• 卷排序：270

文摘

Unequal variance t-test used to compare two mass spectra at every m/z value. Amphetamine-type stimulants associated to reference standard at 99.9% confidence level. Distinction from other reference standards at 99.9% and 99.0% confidence level. Random-match probability (RMP) calculated for statistically equivalent spectra. Number of discriminating ions determined for statistically distinct spectra.