国内出台了气相色谱法和气相色谱质谱法测定环境空气中有机硫化物的标准方法(GB/T14678-93和HJ759-2015),这两种检测方法成本高、操作较为复杂,且使用到了液氧和液氮存在一定的危险性。
浩瀚色谱采用吸附管采样-热脱附/气相色谱质谱法同时测定环境空气中5种有机硫化物,以全扫描模式定性,选择离子扫描法定量,操作安全简单,成本低,线性良好。若采样体积为10L,则方法检出限为2.04×10~(-4)mg·m~(-3)～4.22×10~(-4)mg·m~(-3),相对标准偏差(RSD)为2.76%～7.73%(n=6),加标回收率为78.5%～106%。
本方法适用于恶臭污染源排气和环境空气中硫化氢、甲硫醇、甲硫醚和二甲二硫的同时测定。气相色谱仪的火焰光度检测器（GC-FPD）对四种成分的检出限为0.2╳10-3～1.0╳10-3g，当气体样品中四种成分浓度高于1.0mg/m3时，可取1～2mL气体样品直接注入气相色谱仪分析。对1L气体样品进行浓缩，四种成分的方法检出限分别为.2╳10-3～1.0╳10-3mg/m3。
名称：硫化物测定专用柱
型号：XY-Sulfur
规格：3m*2mm（ID）*3mm(OD)
*高使用温度：120°C
编号：20240513009
应用；GB/T 14678-93空气质量 硫化氢、甲硫醇、甲硫醚和二甲二硫的测定 气相色谱法
适用于安捷伦6890,7890,7820,8860,8890
Standard methods for determining organic sulfides in ambient air using gas chromatography and gas chromatography-mass spectrometry (GB/T14678-93 and HJ759-2015) have been introduced in China. These two detection methods are costly, complex to operate, and pose certain risks when using liquid oxygen and liquid nitrogen.
Haohan Chromatography uses adsorption tube sampling thermal desorption/gas chromatography-mass spectrometry to simultaneously determine five organic sulfides in ambient air. Qualitative analysis is carried out in full scan mode, and ion scanning method is chosen for quantification. The operation is safe and simple, with low cost and good linearity. If the sampling volume is 10L, the detection limit of the method is 2.04 × 10~(-4) mg · m~(-3)~4.22 × 10~(-4) mg · m~(-3), the relative standard deviation (RSD) is 2.76%~7.73% (n=6), and the spiked recovery rate is 78.5%~106%.
This method is applicable for the simultaneous determination of hydrogen sulfide, methyl mercaptan, methyl sulfide, and dimethyl disulfide in the exhaust of odor pollution sources and ambient air. The detection limit of the flame photometric detector (GC-FPD) of the gas chromatograph for the four components is 0.2 × 10-3~1.0 × 10-3g. When the concentration of the four components in the gas sample is higher than 1.0mg/m3, 1-2mL of gas sample can be directly injected into the gas chromatograph for analysis. Concentrate 1L of gas sample, and the detection limits for the four components are. 2 × 10-3~1.0 × 10-3mg/m3, respectively.
Name: Special column for sulfide determination
Model: XY-Sulfur
Specifications: 3m * 2mm (ID) * 3mm (OD)
*High operating temperature: 120 ° C
Number: 20240513009
Application; GB/T 14678-93 Air Quality - Determination of Hydrogen Sulfide, Methylthiol, Methyl Sulfide and Dimethyl Disulfide - Gas Chromatography Method
Applicable to Agilent 68907890782088608890
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