未知物定性

zwq1973 2016/10/28

[quote]原文由 [b]風痕(yiwang520)[/b] 发表: 谢谢。方便把您谱库中该物质的MS图截个屏给我吗？CAS是59303-07-0 吗？[/quote] 网上查了下[url=http://www.thegoodscentscompany.com/search3.php?qName=3189&submit.x=10&submit.y=5#]2-methyl-3-furfuryl thiopyrazine[/url]，[url=http://www.thegoodscentscompany.com/search3.php?qName=3189&submit.x=10&submit.y=5#]2-methyl-5-furfuryl thiopyrazine[/url]，[url=http://www.thegoodscentscompany.com/search3.php?qName=3189&submit.x=10&submit.y=5#]2-methyl-6-furfuryl thiopyrazine[/url]的cas都为59303-07-0，而几个混合在一起的cas为65530-53-2. [table][tr][td=3,1][url=http://www.thegoodscentscompany.com/search3.php?qName=3189&submit.x=10&submit.y=5#]2-methyl-3(or 5 or 6)-(furfuryl thio) pyrazine[/url][/td][/tr][tr][td] [/td][td=3,1]CAS : [color=#006400]59035-98-2[/color] FEMA : [color=#006400]3189[/color] [/td][/tr][tr][td] [/td][td=3,1][url=http://www.thegoodscentscompany.com/search3.php?qName=3189&submit.x=10&submit.y=5#]2-methyl-3-,5 or 6-(furfuryl thio) pyrazine[/url][/td][/tr][tr][td] [/td][td=3,1]CAS : [color=#006400]65530-53-2[/color] FEMA : [color=#006400]3189[/color] JECFA : [color=#006400]1082[/color] Flavis : [color=#006400]13.151[/color] Odor : [color=#4169e1]sulfurous nutty roasted coffee cooked meat[/color][/td][/tr][tr][td] [/td][td=3,1][url=http://www.thegoodscentscompany.com/search3.php?qName=3189&submit.x=10&submit.y=5#]2-methyl-3-furfuryl thiopyrazine[/url][/td][/tr][tr][td] [/td][td=3,1]CAS : [color=#006400]59303-07-0[/color] EC : [color=#006400]261-690-9[/color] FEMA : [color=#006400]3189[/color] [/td][/tr][/table]一般我做到的是两个峰。下面是前头大的那个峰我库里的棒图 [img=,690,515]https://ng1.17img.cn/bbsfiles/images/2016/10/201610281520_615326_0_3.jpg[/img]