碳?xì)浠衔?? ?取本品作為供試品；取甲烷含量為0.0020%的氣體（以氮?dú)鉃橄♂寗┳鳛閷φ諝怏w，照氣相色譜法（通則0521）試驗(yàn)，用玻璃球?yàn)樘盍系纳V柱（0.8m×4mm，80目）；柱溫為110℃；進(jìn)樣口溫度為110℃；檢測器溫度為120℃。量取供試品氣體與對照氣體，注入氣相色譜儀，在凈化溫度為360℃時(shí)測得的峰面積為相應(yīng)空白值；量取供試品氣體與對照氣體，注入氣相色譜儀，測定峰面積，減去相應(yīng)空白值后的峰面積為校正峰面積。按外標(biāo)法以校正峰面積計(jì)算，含碳?xì)浠衔铮ㄒ约淄橛?jì)）不得過0.0020%。
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浩瀚色譜（山東）應(yīng)用技術(shù)開發(fā)有限公司，研制生產(chǎn)的玻璃球色譜柱應(yīng)在安捷倫7890B上測定藥典二氧化碳中的碳?xì)浠衔铮Ц?，分離好，結(jié)果滿意。
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Take this product as the test sample for hydrocarbons; Take a gas with a methane content of 0.0020% (using nitrogen as the diluent) as the reference gas, and perform the gas chromatography test according to General Rule 0521. Use a chromatographic column (0.8m) filled with glass balls × 4mm, 80 mesh); The column temperature is 110 ℃; The inlet temperature is 110 ℃; The detector temperature is 120 ℃. Measure the test sample gas and control gas, inject them into a gas chromatograph, and the peak area measured at a purification temperature of 360 ℃ is the corresponding blank value; Measure the test sample gas and control gas, inject them into a gas chromatograph, measure the peak area, and subtract the corresponding blank value to obtain the corrected peak area. Calculated using the external standard method to correct peak area, the hydrocarbon content (calculated as methane) shall not exceed 0.0020%.
Haohan Chromatography (Shandong) Application Technology Development Co., Ltd. has developed and produced a glass ball chromatographic column for the determination of hydrocarbons in pharmacopoeia carbon dioxide on Agilent 7890B. The column efficiency is high, the separation is good, and the results are satisfactory.
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