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工業氯乙酸純度測定專用液相柱2019
工業氯乙酸純度測定專用液相柱2019 詳細信息：

固定相：專用
規格：HH-LYS2019

氯乙酸是一種重要的化工中間體，該產品的質量分析目前普遍采用國標法(化學法)分析， 由于該方法的終點顯色靈敏度差，分析的重現性不好及誤差較大，且分析時間長(約1.5～ 2.0h)，因此許多單位都在研究其快、好的分析方法，氣相色譜法就是重點研究之一， 目 前有直接法和間接法兩種：直接法對儀器的損害嚴重， 操作溫度也高，不宜采用。間接法對儀器損害小，操作溫度低，但如用內標法，分析操作麻 煩，分析時間較長；若用修正面積歸一 法，雖操作簡單，分析時間短(約15～20 min)，但受產品中水分含量的影響較大(因間接 法不能直接測出水分)，氯乙酸又是一種強吸濕性產品，含水是難免的，含水量也隨環境濕 度的大小而變化，因此只有找到一種快速測定水含量的方法與修正面積歸一法相結合，才能 達 到準確快速地分析氯乙酸產品的目的。

滕州市浩瀚色譜儀器技術服務有限公司，，研發液相色譜法測定工業氯乙酸的純度，其雜質乙酸，二氯乙酸,羥基乙酸和主峰氯乙酸得到有效分離，峰形對稱，，且雜質二氯乙酸在主峰之前出，無被覆蓋的現象，此項技術為浩瀚色譜研制，了氯乙酸分析的新方法。

工業氯乙酸純度測定專用液相柱2019 圖片：


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

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