产品名称：	HH-624毛细管柱 聚合型表面活性剂中游离环氧丙烷的测定
产品型号：	HH-624毛细管柱
品牌：	1356
产品数量：
产品单价：	面议
日期:	2022-04-25

HH-624毛细管柱 聚合型表面活性剂中游离环氧丙烷的测定的详细资料

聚合型表面活性剂中游离环氧丙烷的测定
聚合型表面活性剂中游离环氧丙烷的测定 详细信息：

名称：毛细管柱
固定相：6 %腈丙基苯基 94 %二甲基聚硅氧烷，
规格：30m*0.32mm*1.0um
型号：HH-624
应用： 表面活性剂 聚合型表面活性剂中游离环氧丙烷的测定 气相色谱法

本标准修改采用ISO国际标准：ISO 19619:2018。

采标中文名称:表面活性剂——环氧丙烷聚合型表面活性剂中游离环氧丙烷的测定——气相色谱法。
本标准规定了多元嵌段共聚物表面活性剂产品中环氧丙烷的顶空气相色谱-氢火焰离子化检测器的检测方法及顶空气相色谱-质谱的阳性确证方法。 本标准适用于以聚丙二醇类结构物质为原料的表面活性剂产品中环氧丙烷含量的测定。 原理：试样中的目标物通过顶空进样系统加热后变成气态游离出来并达到热平衡，经顶空进样通过程序升温气相色谱系统分离，采用氢火焰离子化检测器进行检测，以保留时间定性，外标法定量。




Determination of Free Propylene Oxide in Polymeric Surfactants
Determination of Free Propylene Oxide in Polymeric Surfactants Details:

Name: capillary column
Stationary phase: 6% nitrile propylphenyl 94% dimethylpolysiloxane,
Specifications: 30m*0.32mm*1.0um
Model: HH-624
Applications: Surfactants Determination of free propylene oxide in polymeric surfactants Gas chromatography

The revision of this standard adopts the ISO international standard: ISO 19619:2018.

Mining standard Chinese name: Surfactant—Determination of free propylene oxide in propylene oxide polymeric surfactant—Gas chromatography.
This standard specifies the detection method of headspace gas chromatography-hydrogen flame ionization detector and the positive confirmation method of headspace gas chromatography-mass spectrometry of propylene oxide in multi-block copolymer surfactant products. This standard applies to the determination of propylene oxide content in surfactant products using polypropylene glycol structural substances as raw materials. Principle: The target substance in the sample is heated by the headspace sampling system and then becomes gaseous and dissociated to reach thermal equilibrium. Time qualitative, external standard method quantitative.