食品添加劑二氧化碳中痕量苯測定，液化石油氣，二甲醚，甲縮醛，乙縮醛，乙醇，室內(nèi)空氣，變壓器油，多氯聯(lián)苯，植物油，氨水，氨氣，過氧化物，室內(nèi)空氣TVOC，MTBE，三甲胺

食品添加劑二氧化碳中痕量苯測定
食品添加劑二氧化碳中痕量苯測定 詳細(xì)信息：

名稱：填充柱
規(guī)格：2m*3mm（內(nèi)徑）
固定液：100%二甲基聚硅氧烷
載體：101白色硅藻土0.17mm-0.25mm
型號：10%SE-30/101
應(yīng)用：食品添加劑二氧化碳中痕量苯系物測定

隨著經(jīng)濟(jì)的發(fā)展和科技的進(jìn)步,"食品添加劑液體二氧化碳"(以下簡稱食品CO2)的供求日趨緊張.按照美國食品CO2的人均消費(fèi)量,我國食品CO2的年需求量可達(dá)1000萬t.食品CO2中的微量苯嚴(yán)重影響產(chǎn)品質(zhì)量,國際食品CO2標(biāo)準(zhǔn)中對苯的含量有嚴(yán)格要求:≤0.02×10-6(V/V).目前國內(nèi)的食品CO2標(biāo)準(zhǔn)中尚無此項技術(shù)要求,預(yù)計2005年頒發(fā)的新版食品CO2國標(biāo)中將有規(guī)定.食品CO2中微量苯的分析中我國尚無該類國家級標(biāo)準(zhǔn)物質(zhì),因此亟待在此方面進(jìn)行研究和開發(fā),以利于量值傳遞.

浩瀚色譜（山東）應(yīng)用技術(shù)開發(fā)有限公司用GC-氣相色譜儀進(jìn)行分析和比對,考察了幾種標(biāo)氣的相對標(biāo)準(zhǔn)偏差并與BOC標(biāo)氣比對,研究了不同取樣、稀釋方法的影響,并考察CO2對苯分析的影響及不同苯含量定標(biāo)的線性關(guān)系.

食品添加劑二氧化碳中痕量苯測定  測試譜圖：



Determination of Trace Benzene in Food Additive Carbon Dioxide
Determination of Trace Benzene in Food Additive Carbon Dioxide Details:

Name: Packed Column
Specifications: 2m*3mm (inner diameter)
Fixative: 100% dimethylpolysiloxane
Carrier: 101 white diatomaceous earth 0.17mm-0.25mm
Model: 10%SE-30/101
Application: Determination of trace benzene series in food additive carbon dioxide

With the development of economy and the advancement of science and technology, the supply and demand of "food additive liquid carbon dioxide" (hereinafter referred to as food CO2) is becoming increasingly tight. According to the per capita consumption of food CO2 in the United States, the annual demand for food CO2 in my country can reach 10 million t. Food The trace amount of benzene in CO2 seriously affects the product quality. The international food CO2 standard has strict requirements on the content of benzene: ≤0.02×10-6(V/V). At present, there is no such technical requirement in the domestic food CO2 standard. There will be provisions in the new version of the food CO2 national standard issued in 2005. There is no such national standard substance in my country for the analysis of trace benzene in food CO2, so it is urgent to carry out research and development in this area to facilitate the transfer of value.

Haohan Chromatography (Shandong) Application Technology Development Co., Ltd. used GC- gas chromatograph for analysis and comparison, investigated the relative standard deviation of several standard gases and compared them with BOC standard gas, and studied the influence of different sampling and dilution methods , and the influence of CO2 on the analysis of benzene and the linear relationship of calibration with different benzene contents were investigated.

Determination of trace benzene in food additive carbon dioxide Test spectrum: