名稱：HH-1毛細(xì)管柱

固定相：二甲基聚硅氧烷
規(guī)格：50m*0.32mm*1.0um
*高使用溫度：300°C
編號(hào)：20210422006
應(yīng)用：GB 21027-2020《學(xué)生用品的安全通用要求》

浩瀚色譜（山東）應(yīng)用技術(shù)開發(fā)有限公司分別采用氣相色譜法與氣相色譜-質(zhì)譜聯(lián)用法對2個(gè)膠粘劑樣品進(jìn)行了苯含量檢測。結(jié)果表明:對于同一樣品,采用這2種方法檢測出的苯含量數(shù)據(jù)相差懸殊。氣相色譜法的檢測結(jié)果易受干擾,而且響應(yīng)值低、峰形拖尾嚴(yán)重,無法進(jìn)行定性分析,特別對于基質(zhì)復(fù)雜的樣品很難給出準(zhǔn)確的檢測結(jié)果。氣相色譜-質(zhì)譜聯(lián)用法(GC-MS)不僅能將樣品中的各個(gè)物質(zhì)分離開來,而且還能通過質(zhì)譜對各個(gè)物質(zhì)的種類進(jìn)行鑒別。GC-MS聯(lián)用法因其同時(shí)具備高特異性和高靈敏度,有望成為膠粘劑中苯含量檢測的普適性方法。

GB 21027—2020膠黏劑,涂改制品中苯的測定  測試譜圖：


GB 21027—2020 Adhesives, Determination of Benzene in Modified Products
GB 21027—2020 Adhesives, Determination of Benzene in Modified Products Details:

Name: HH-1 capillary column

Stationary Phase: Dimethylpolysiloxane
Specifications: 50m*0.32mm*1.0um
*High operating temperature: 300°C
No.: 20210422006
Application: GB 21027-2020 "General Requirements for the Safety of Student Supplies"

Haohan Chromatography (Shandong) Application Technology Development Co., Ltd. used gas chromatography and gas chromatography-mass spectrometry to detect the benzene content of two adhesive samples. The results showed that for the same sample, the benzene content data detected by these two methods were very different. The detection results of gas chromatography are susceptible to interference, and the response value is low and the peak shape tailing is serious, which cannot be used for qualitative analysis, especially for samples with complex matrices, it is difficult to give accurate detection results. Gas chromatography-mass spectrometry (GC-MS) can not only separate the various substances in the sample, but also identify the species of each substance by mass spectrometry. Because of its high specificity and high sensitivity, GC-MS combined method is expected to become a universal method for the detection of benzene content in adhesives.

GB 21027—2020 Adhesives, Determination of Benzene in Modified Products Test Spectrum: