HAOHANHH-SO2食品级二氧化碳中硫化物测定脱二氧化硫管色谱柱

二氧化碳产品的原料主要来源于乙烯氧化副产气、合成氨及发酵尾气、地下气井等,硫化物在其中普遍存在且形态不一.合成氨法二氧化碳原料气中的硫化物主要为硫化氢、氧硫化碳、二氧化硫等;地下气井二氧化碳原料气中的硫化物主要为硫化氢等还原态硫化物;发酵法二氧化碳原料气中的硫化物主要为硫醇、硫醚等有机硫化物.由于硫化物的存在会严重影响饮料的品质,还会对人体健康产生危害,因此目前国家标准及国际饮料协会标准中对硫化物的控制很严格,总硫要求≤0.1ppm,二氧化硫≤1ppm.

目前二氧化碳中硫化物的测定方法有氧化微库仑法、紫外荧光法、硫化氢色带法、分光光度法、气相色谱法等。火焰光度分析硫化物的原理:样品在富氢火焰燃烧时，含硫化合物发射出波长为394nm的特征光。通过滤光片将特征光过滤后，再经光电倍增管将光信号转换成电信号，微电流放大后纪录。综上可知，硫化物的火焰光度分析方法是一种切实可行的硫检测方法。

浩瀚色谱（山东）应用技术开发有限公司生产的GC790FPD痕量气体分析仪既能在此设备上检出总硫的含量，又可以确定硫化物的类型，非常适用于二氧化碳工厂的质量控制及的出厂检验。
 

名称：脱二氧化硫管

型号：SO2

规格：60mm*3mm

*gao使用温度：100°C

应用：食品级/液体二氧化碳中二氧化硫的脱除

 
The raw materials of carbon dioxide products mainly come from the by-product gas of ethylene oxidation, synthetic ammonia and fermentation tail gas, underground gas wells, etc., and sulfides are ubiquitous and different in form. , sulfur dioxide, etc.; the sulfides in the carbon dioxide feed gas of underground gas wells are mainly reduced sulfides such as hydrogen sulfide; the sulfides in the carbon dioxide feed gas of the fermentation process are mainly organic sulfides such as mercaptans and sulfides. Severely affects the quality of beverages, and will also cause harm to human health. Therefore, the current national standards and the standards of the International Beverage Association control sulfides very strictly. The total sulfur requirements are less than or equal to 0.1ppm and sulfur dioxide is less than 1ppm.

At present, the determination methods of sulfide in carbon dioxide include oxidation microcoulometry, ultraviolet fluorescence method, hydrogen sulfide color band method, spectrophotometry, gas chromatography and so on. The principle of flame photometric analysis of sulfide: When the sample is burned in a hydrogen-rich flame, the sulfur-containing compound emits a characteristic light with a wavelength of 394 nm. After the characteristic light is filtered by a filter, the optical signal is converted into an electrical signal by a photomultiplier tube, and the microcurrent is amplified and recorded. To sum up, the flame photometric analysis method of sulfide is a practical method for sulfur detection.

The GC790FPD trace gas analyzer produced by Haohan Chromatography (Shandong) Application Technology Development Co., Ltd. can not only detect the total sulfur content on this equipment, but also determine the type of sulfide, which is very suitable for the quality control of carbon dioxide factories and the delivery of test.

Name: desulfurization tube

Model: SO2

Specifications: 60mm*3mm

Maximum use temperature: 100°C

Application: Removal of sulfur dioxide from food grade/liquid carbon dioxide