产品名称：	HH一sulfide-III硫专用柱 环境大气和海洋表层水中挥发性硫化物的测定
产品型号：	HH一sulfide-III硫专用柱
品牌：	1356
产品数量：
产品单价：	面议
日期:	2022-02-23

HH一sulfide-III硫专用柱 环境大气和海洋表层水中挥发性硫化物的测定的详细资料

环境大气和海洋表层水中挥发性硫化物的测定
环境大气和海洋表层水中挥发性硫化物的测定 详细信息：

名称：硫化物专用柱

固定相：专用

规格：3m*3mm

型号：HH一sulfide-III

应用：硫化氢，羰基硫，二硫化碳，噻吩，甲硫醚，甲硫醇，乙硫醇，乙硫醚，二甲er硫等9种硫化物的测定

浩瀚色谱（山东）应用技术开发有限公司建立了采用预浓缩和GC-FPD测定环境大气和海洋表层水中挥发性硫化物(COS、DMS和CS2)的方法.该方法对气态COS、DMS和CS2的回收率分别为(95±4)%,(86±3)%和(91±6)%(n=5),精密度分别为4.75%,8.26%和7.55%(n=5).对水体中COS、DMS和CS2的回收率分别为(86±8)%,(80±6)%和(97±12)%(n=5),精密度分别为8.17%,5.59%和11.70%.COS、DMS和CS2检出限分别为33 pg,387 pg和22 pg.采用该方法测定了近岸海域大气和表层海水中COS、DMS和CS2的浓度.结果表明,COS是近岸海域大气中主要挥发性硫化物,DMS是表层海水中主要的挥发性硫化物.3种挥发性硫化物的浓度有明显的季节差异,夏季浓度远高于冬季浓度.

环境大气和海洋表层水中挥发性硫化物的测定  测试谱图：




Determination of Volatile Sulfides in Ambient Atmosphere and Ocean Surface Water
Determination of Volatile Sulfide Compounds in Ambient Atmosphere and Ocean Surface Water Details:

Name: Special column for sulfide

Stationary Phase: Dedicated

Specifications: 3m*3mm

Model: HH-sulfide-III

Application: Determination of 9 kinds of sulfides such as hydrogen sulfide, carbonyl sulfide, carbon disulfide, thiophene, methyl sulfide, methyl mercaptan, ethyl mercaptan, ethyl sulfide, dimethyl sulfide, etc.




Haohan Chromatography (Shandong) Application Technology Development Co., Ltd. has established a method for the determination of volatile sulfides (COS, DMS and CS2) in ambient atmosphere and ocean surface water using preconcentration and GC-FPD. The recoveries were (95±4)%, (86±3)% and (91±6)% (n=5), respectively, and the precisions were 4.75%, 8.26% and 7.55% (n=5). The recoveries of COS, DMS and CS2 were (86±8)%, (80±6)% and (97±12)% (n=5), respectively, and the precisions were 8.17%, 5.59% and 11.70%, respectively. The detection limits of COS, DMS and CS2 were 33 pg, 387 pg and 22 pg, respectively. This method was used to determine the concentrations of COS, DMS and CS2 in the atmosphere and surface seawater in the coastal waters. DMS is the main volatile sulfide in surface seawater. The concentrations of the three volatile sulfides have obvious seasonal differences, and the concentration in summer is much higher than that in winter.

Determination of Volatile Sulfide in Ambient Atmosphere and Ocean Surface Water Test Spectrum: