HH一sulfide-III 工作场所空气有毒物质测定 硫化物测定专用柱

浩瀚色谱（山东）应用技术开发有限公司，采用大气预浓缩仪-GC/FPD建立了环境空气中9种含硫化合物的测定方法。结果表明,经惰性化改造后的大气预浓缩仪-GC/FPD测定系统的基线低,对硫化物无残留。9种化合物的线性回归方程的相关系数均在0.995以上,高、中、低3种浓度的空白加标回收率分别为98.6%105.3%、99.1%103.7%、85.7%99.7%,除硫化氢的相对标准偏差为10.9%外,其余8种含硫化合物的相对标准偏差可控制在6.9%以内。当进样体积为400 m L时,方法的检出限在0.10～1.1 ng/m3。CO2、H2O对实际样品的测定无干扰。因此,该方法能够满足目前监测工作的要求,更加适用于环境空气中痕量含硫化合物的测定。

工作场所空气有毒物质测定 硫化物测定专用柱  测试谱图：







Special column for determination of toxic substances and sulfides in workplace air
Detailed information on the dedicated column for measuring sulfides in workplace air for the determination of toxic substances:
Haohan Chromatography (Shandong) Application Technology Development Co., Ltd. has established a method for the determination of 9 sulfur-containing compounds in ambient air using an atmospheric pre concentrator GC/FPD. The results indicate that the baseline of the atmospheric pre concentration instrument GC/FPD measurement system after inerting modification is low and there is no residue of sulfides. The correlation coefficients of the linear regression equations for 9 compounds are all above 0.995. The blank spiked recovery rates for high, medium, and low concentrations are 98.6%, 105.3%, 99.1%, 103.7%, 85.7%, and 99.7%, respectively. Except for hydrogen sulfide with a relative standard deviation of 10.9%, the relative standard deviation of the other 8 sulfur-containing compounds can be controlled within 6.9%. When the injection volume is 400 mL, the detection limit of the method is between 0.10 and 1.1 ng/m3. CO2 and H2O do not interfere with the determination of actual samples. Therefore, this method can meet the requirements of current monitoring work and is more suitable for the determination of trace sulfur-containing compounds in ambient air.
Name: Special Column for Sulfide Determination
Model: HH sulfade-III
Specification: 3m * 3mm
Maximum operating temperature: 120 ° C
Number: 20240914006
Application: GB 14678-1993 Air quality - Determination of hydrogen sulfide, methyl mercaptan, methyl sulfide and dimethyl disulfide - Gas chromatography method
Suitable for Agilent 689078207890886088890; Shimadzu GC-2010, GC-2014，GC-2030； Thermo Fisher 1310; Brooke, PE， Panno, Fuli, Kechuang, Tianrui, Tianmei, Huaai, Beifen Ruili, etc
Measurement of toxic substances in workplace air using a dedicated column for sulfide detection, spectrum diagram: