名稱：苯系物專用柱

固定液：2.5%鄰苯甲酸二壬酯（DNP）+2.5%有機皂土-34（Bentone-34）

擔(dān)體：Chromosorb G.DMCS ，80-100目

規(guī)格：2m*1/8,2m*3mm（外徑），2m*4mm（外徑）

型號：2.5%DNP+2.5%Bentone-34/Chromosorb G.DMCS

應(yīng)用：苯系物測定/水質(zhì)/環(huán)境空氣/室內(nèi)空氣



隨著水環(huán)境污染的日愈嚴(yán)重，人們對飲用水安全意識也在不斷增加，2001年衛(wèi)生部《生活飲用水衛(wèi)生規(guī)范》中規(guī)定了水中苯系物測定方法，其中法為二硫化碳萃取填充柱氣相色譜法。

苯系物是環(huán)境中常見的有機污染物，毒性很大，有“三致”（致癌、致畸、致突變）危害，是我國環(huán)境監(jiān)測中優(yōu)先控制污染物。水中苯系物的測定主要采用氣相色譜法，苯系物在飲用水或地表水中的濃度一般較低，在痕量分析之前需要對樣品進行預(yù)處理。水中苯系物測定方法中預(yù)處理方法主要有二硫化碳萃取法和靜態(tài)項空法。二硫化碳在氫火焰上信號響應(yīng)小，在填充柱上能和目標(biāo)物較好的分離。

滕州市浩瀚色譜儀器技術(shù)服務(wù)有限公司，指出了氣相色譜法測定水質(zhì)苯系物存在的不足。提出用 3%有機皂土 - 34+2 .5 %鄰苯二甲酸二壬酯混合涂漬的 Chromosorb G.DMCS 擔(dān)體 (8 0目～ 100目 )不銹鋼色譜柱分離苯系物 ,可在 12min內(nèi)分離水樣中 7種苯系物 ,對二甲苯與間二甲苯等難分離物質(zhì)對可完全分離。改進后的樣品前處理頂空裝置操作簡單、安全 ,可連續(xù)自動振蕩 ,并且可以同時處理多個樣品.


此柱柱效高，3種異構(gòu)體臨/間/對-二甲苯分離徹底，分析時間適中，避免了2.5米/3米/3.5米/4米填充柱分析時間冗長，柱效低，效率低下的缺陷。

浩瀚色譜生產(chǎn)的每根色譜柱都經(jīng)過嚴(yán)格的測試評價，出廠采用的鋁膜密封袋包裝，精致，大氣，上檔次。


水質(zhì)苯系物測定專用填充柱 測試譜圖：





Special packed column for water quality determination of benzene series
Packed column for water quality determination of benzene series Details:

Name: Special column for benzene series

Fixing solution: 2.5% dinonyl phthalate (DNP) + 2.5% organic bentonite-34 (Bentone-34)

Carrier: Chromosorb G.DMCS, 80-100 mesh

Specifications: 2m*1/8, 2m*3mm (outer diameter), 2m*4mm (outer diameter)

Model: 2.5%DNP+2.5%Bentone-34/Chromosorb G.DMCS

Application: determination of benzene series/water quality/ambient air/indoor air



As the pollution of the water environment becomes more and more serious, people's awareness of drinking water safety is also increasing. In 2001, the Ministry of Health's "Drinking Water Hygiene Code" stipulated the determination method of benzene series in water. The first method is carbon disulfide extraction and filling. Column gas chromatography.

Benzene is a common organic pollutant in the environment. It is very toxic and has "three causes" (carcinogenic, teratogenic, and mutagenic) hazards. It is the priority control pollutant in my country's environmental monitoring. The determination of benzene series in water mainly adopts gas chromatography. The concentration of benzene series in drinking water or surface water is generally low, and samples need to be pretreated before trace analysis. The pretreatment methods in the determination of benzene series in water mainly include carbon disulfide extraction method and static term empty method. Carbon disulfide has a small signal response on hydrogen flame and can be separated from the target better on the packed column.

Tengzhou Haohan Chromatography Instrument Technology Service Co., Ltd. pointed out the deficiencies in the determination of benzene series in water by gas chromatography. It is proposed to use 3% organic bentonite-34+2.5% dinonyl phthalate mixed coated Chromosorb G.DMCS support (80 mesh to 100 mesh) stainless steel chromatographic column to separate benzene series, which can be within 12 minutes Separate 7 kinds of benzene series in the water sample, para-xylene and meta-xylene and other difficult-to-separate substances can be completely separated. The improved sample pretreatment headspace device is simple and safe to operate, can continuously and automatically oscillate, and can process multiple samples at the same time.


This column has high column efficiency, complete separation of 3 isomers, pre/inter/para-xylene, moderate analysis time, avoiding the lengthy analysis time of 2.5m/3m/3.5m/4m packed column, low column efficiency and efficiency Low defect.

Each chromatographic column produced by Haohan Chromatography has undergone rigorous testing and evaluation. It is packaged in high-end aluminum film sealed bags, exquisite, atmospheric and high-grade.


Special packed column for determination of water quality benzene series Test spectrum: