产品名称：	HH-LYS2019 工业氯乙酸纯度测定专用液相柱2019
产品型号：	HH-LYS2019
品牌：	1941
产品数量：
产品单价：	面议
日期:	2021-11-07

HH-LYS2019 工业氯乙酸纯度测定专用液相柱2019的详细资料

工业氯乙酸纯度测定专用液相柱2019
工业氯乙酸纯度测定专用液相柱2019 详细信息：

固定相：专用
规格：HH-LYS2019

氯乙酸是一种重要的化工中间体，该产品的质量分析目前普遍采用国标法(化学法)分析， 由于该方法的终点显色灵敏度差，分析的重现性不好及误差较大，且分析时间长(约1.5～ 2.0h)，因此许多单位都在研究其快、好的分析方法，气相色谱法就是重点研究之一， 目 前有直接法和间接法两种：直接法对仪器的损害严重， 操作温度也高，不宜采用。间接法对仪器损害小，操作温度低，但如用内标法，分析操作麻 烦，分析时间较长；若用修正面积归一 法，虽操作简单，分析时间短(约15～20 min)，但受产品中水分含量的影响较大(因间接 法不能直接测出水分)，氯乙酸又是一种强吸湿性产品，含水是难免的，含水量也随环境湿 度的大小而变化，因此只有找到一种快速测定水含量的方法与修正面积归一法相结合，才能 达 到准确快速地分析氯乙酸产品的目的。

滕州市浩瀚色谱仪器技术服务有限公司，，研发液相色谱法测定工业氯乙酸的纯度，其杂质乙酸，二氯乙酸,羟基乙酸和主峰氯乙酸得到有效分离，峰形对称，，且杂质二氯乙酸在主峰之前出，无被覆盖的现象，此项技术为浩瀚色谱研制，了氯乙酸分析的新方法。

工业氯乙酸纯度测定专用液相柱2019 图片：


Industrial chloroacetic acid purity determination liquid column 2019
Industrial chloroacetic acid purity determination liquid column 2019 Details:

Stationary phase: dedicated
Specification: HH-LYS2019

Chloroacetic acid is an important chemical intermediate. The quality analysis of this product is generally analyzed by the national standard method (chemical method). Due to the poor color rendering sensitivity of the method, the reproducibility of the analysis is not good and the error is large. The analysis time is long (about 1.5 ~ 2.0h), so many units are studying its faster and better analytical methods. Gas chromatography is one of the key researches. There are two kinds of direct and indirect methods: direct method to instrument The damage is serious and the operating temperature is high, which should not be used. The indirect method has less damage to the instrument and low operating temperature. However, if the internal standard method is used, the analysis operation is troublesome and the analysis time is long. If the corrected area normalization method is used, although the operation is simple, the analysis time is short (about 15 to 20 minutes). However, it is greatly affected by the moisture content of the product (the water cannot be directly detected by the indirect method). Chloroacetic acid is a strong hygroscopic product, and water content is inevitable. The water content also varies with the humidity of the environment, so only A quick method for determining the water content can be combined with the modified area normalization method to achieve an accurate and rapid analysis of the chloroacetic acid product.

Tengzhou Haohao Chromatography Instrument Technology Service Co., Ltd. keeps pace with the times and develops high performance liquid chromatography to determine the purity of industrial chloroacetic acid. Its impurities such as acetic acid, dichloroacetic acid, glycolic acid and main peak chloroacetic acid are effectively separated, and the peak shape is symmetrical. And the impurity dichloroacetic acid is out before the main peak, and there is no covering phenomenon. This technology is exclusively developed by Haohao Chromatography, which has opened up a new method for chloroacetic acid analysis.

Industrial chloroacetic acid purity determination liquid column 2019