山崩
发表于 2025-3-25 06:24:23
http://reply.papertrans.cn/16/1567/156655/156655_21.png
废墟
发表于 2025-3-25 10:59:09
http://reply.papertrans.cn/16/1567/156655/156655_22.png
annexation
发表于 2025-3-25 14:46:06
http://reply.papertrans.cn/16/1567/156655/156655_23.png
Comedienne
发表于 2025-3-25 16:32:58
http://reply.papertrans.cn/16/1567/156655/156655_24.png
Stress
发表于 2025-3-25 22:44:51
https://doi.org/10.1007/978-94-6300-552-4The main goal in using chemical reactions in gas chromatography is the solution of definite analytical problems which are difficult to solve within the framework of the classical variations of gas chromatography .
不能妥协
发表于 2025-3-26 02:39:56
http://reply.papertrans.cn/16/1567/156655/156655_26.png
DAUNT
发表于 2025-3-26 07:16:48
http://reply.papertrans.cn/16/1567/156655/156655_27.png
小故事
发表于 2025-3-26 10:11:24
http://reply.papertrans.cn/16/1567/156655/156655_28.png
Volatile-Oils
发表于 2025-3-26 13:25:18
http://reply.papertrans.cn/16/1567/156655/156655_29.png
钳子
发表于 2025-3-26 17:18:48
Elemental Analysis,Elemental analysis is one of the basic methods of analytical chemistry used in the characterization of compounds. The classical methods of elemental analysis ensure high accuracy; however, these methods are time-consuming and difficult to carry out. The time necessary for a single analysis of an organic compound varies between 1.5 and 3 hours .