水质六六六、滴滴涕的测定1.5%OV-17+1.95%QF-1/Chromosorb AW DMCS安捷伦7890B玻璃柱
水质六六六、滴滴涕的测定1.5%OV-17+1.95%QF-1/Chromosorb AW DMCS安捷伦7890B玻璃柱 详细信息：
名称：安捷伦7890B玻璃柱
规格：2m*1/4，80-100目
型号：1.5%OV-17+1.95%QF-1/Chromosorb AW DMCS（80-100目）
编号：20220818001
温度：240°C
应用：GB/T 7492-1987 水质 六六六、滴滴涕的测定 气相色谱法
GB/T 7492-1987 水质 六六六、滴滴涕的测定 气相色谱法
本标准适用于地面水、地下水以及部分污水中六六六、滴滴涕的分析。
本方法用石油醚萃取税种六六六、滴滴涕，净化后用代电子捕获检测器气相色谱仪测定。
当所用一起不同时，方法的检出范围不同。r-六六六通常检测至4ng/L，滴滴涕可检测至200ng/L。样品中的有机磷农药、不饱和烃以及邻苯二甲酸酯等有机化合物在电子捕获鉴定仪器上也有响应，这些干扰物质可用浓liu酸除掉。
水质六六六、滴滴涕的测定1.5%OV-17+1.95%QF-1/Chromosorb AW DMCS安捷伦7890B玻璃柱 测试谱图：
high quality
Every column is rigorously tested
Full range of chromatographic columns
Reliable technical support
Years of accumulated rich experience in chromatographic analysis and technical team
quality assurance:
Use high-quality stainless steel tubing, glass tubing and chromatography packing to make a variety of high-efficiency packed chromatography columns
If you need to use stainless steel filter mesh as the plug at both ends of the column, please specify when ordering
If on-column injection is used, there will be a 6CM space at the front of the column inlet.
To prevent the outflow of chromatographic packing, both ends of the column are blocked with silanized glass wool
If the column is filled with valve injection or non-on-column injection, the column inlet is filled
Various glass column configurations for gas chromatographs are available
The entrance of the 2mm inner diameter glass column tube is equipped with a slope to facilitate sample injection
Each column is fully conditioned and tested for rigorous quality evaluation
Precautions
Thank you for purchasing a chromatographic column produced by Haohan.
Every chromatographic column provided by Haohan has been aged. To ensure you get the best analytical separation effect, please aged for 1-2 hours before use. When aging, the carrier gas should be passed through for about 10 minutes. After the air in the column is completely replaced, the temperature is programmed to increase to the maximum operating temperature for aging.
To avoid contamination of the detector, do not connect the column to the detector during conditioning.
When the oven temperature is higher than room temperature, a small amount of oxygen in the carrier gas will damage the stationary phase in the chromatographic column, and the carrier gas must be further deoxygenated by a deoxygenation tube (it is recommended that the oxygen content of the carrier gas used should not exceed 1PPm)
When installing a chromatographic column, the product number should face the operator, and the left side is the injection port of the chromatographic column (or see the logo).
When disassembling the column, bring the column temperature down to room temperature before turning off the carrier gas.