"水溶液气味、味道及外观"是食品级二氧化碳产品中一项极其重要的感官评价指标,在GB 10621-2006标准中,它是对质量要求中已量化的及未明确限定的杂质给出一个综合的终端限制.二氧化碳产品的主要原料来自于各种工业废气及地下气井，不同的生产原料和生产工艺生产的二氧化碳产品中，产生异味的物质不同，感官的味道亦差别很大。如:油的味道多源于烃类杂质的;醇类、醛、醚类等含氧有机物会呈现淡淡的酒香及甜味;硫化物则有着强烈的恶臭及腐味。在硫化物以总硫方式控制合格的前提下，发酵尾气回收的二氧化碳产品中可能产生异味的杂质通常为醇、醛、醚、酮、酯等含氧有机物。当"水溶液气味、味道及外观"检验不合格时，应通过仪器分析确定"异味源"，并给出定量分析结果，以免因为人的感观差异而导致对检测结果产生异议。另外针对发酵尾气原料，在建议二氧化碳提纯工艺时，要考虑对未知有机物的去除，确保生产出合格的产品。
浩瀚色谱（山东）应用技术开发有限公司，对食品级CO2原料气中少量硫化物的测定方法进行了探索,建立了气相色谱法测定二氧化碳气体中硫化物的分析方法.该方法精密度高,准确度好,检出限达到0.05μL/L,在实际应用中获得了较好的效果.
名称：硫化物专用毛细管柱
型号：HH-Sulfide
编号：20240413009
规格：60m*0.32mm*7um
*高使用温度：300°C
分离：硫化氢，羰基硫，二氧化硫，噻吩，甲硫醇，甲硫醚，乙硫醚，乙硫醇，二jia二硫等
应用：食品级二氧化碳中硫化物的分离
特点：柱效高，分离好
"The odor, taste, and appearance of aqueous solutions" is an extremely important sensory evaluation index in food grade carbon dioxide products. In the GB 10621-2006 standard, it provides a comprehensive terminal limit for quantified and undefined impurities in quality requirements. The main raw materials for carbon dioxide products come from various industrial waste gases and underground gas wells. Different production materials and processes produce carbon dioxide products, and the substances that produce odors are different, resulting in significant differences in sensory taste. For example, the taste of oil is mostly derived from hydrocarbon impurities; Alcohols, aldehydes, ethers, and other oxygen-containing organic compounds will present a light aroma and sweetness; Sulfides have a strong odor and putrid odor. On the premise that sulfides are controlled by total sulfur and qualified, the impurities that may produce odor in the carbon dioxide products recovered from fermentation tail gas are usually oxygen-containing organic compounds such as alcohols, aldehydes, ethers, ketones, esters, etc. When the odor, taste, and appearance of the aqueous solution fail the inspection, the "odor source" should be determined through instrument analysis, and quantitative analysis results should be provided to avoid objections to the test results due to differences in human perception. In addition, when proposing carbon dioxide purification processes for fermentation exhaust raw materials, consideration should be given to the removal of unknown organic compounds to ensure the production of qualified products.
Haohan Chromatography (Shandong) Application Technology Development Co., Ltd. has explored the determination method of small amounts of sulfides in food grade CO2 raw gas and established a gas chromatography analysis method for the determination of sulfides in carbon dioxide gas. This method has high precision, good accuracy, and a detection limit of 0.05 μ L/L has achieved good results in practical applications
Name: Sulfide specific capillary column
Model: HH Sulfide
Number: 20240413009
Specification: 60m * 0.32mm * 7um
*High operating temperature: 300 ° C
Separation: hydrogen sulfide, carbonyl sulfur, sulfur dioxide, thiophene, methyl mercaptan, methyl sulfide, ethyl sulfide, ethyl mercaptan, dimethyl disulfide, etc
Application: Separation of sulfides from food grade carbon dioxide
Features: High column efficiency and good separation
滕州市浩瀚色谱仪器技术服务有限公司
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传真：0632-5667636
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地址：山东滕州市平行路（商务部和技术部）
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