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1. CN112014487 - Method for determining content of chloroalkane in chloral hydrate or preparation thereof

Office
Chine
Numéro de la demande 201910466405.7
Date de la demande 30.05.2019
Numéro de publication 112014487
Date de publication 01.12.2020
Numéro de délivrance 112014487
Date de délivrance 22.02.2022
Type de publication B
CIB
G01N 30/02
GPHYSIQUE
01MÉTROLOGIE; TESTS
NRECHERCHE OU ANALYSE DES MATÉRIAUX PAR DÉTERMINATION DE LEURS PROPRIÉTÉS CHIMIQUES OU PHYSIQUES
30Recherche ou analyse de matériaux par séparation en constituants utilisant l'adsorption, l'absorption ou des phénomènes similaires ou utilisant l'échange d'ions, p.ex. la chromatographie
02Chromatographie sur colonne
G01N 30/06
GPHYSIQUE
01MÉTROLOGIE; TESTS
NRECHERCHE OU ANALYSE DES MATÉRIAUX PAR DÉTERMINATION DE LEURS PROPRIÉTÉS CHIMIQUES OU PHYSIQUES
30Recherche ou analyse de matériaux par séparation en constituants utilisant l'adsorption, l'absorption ou des phénomènes similaires ou utilisant l'échange d'ions, p.ex. la chromatographie
02Chromatographie sur colonne
04Préparation ou injection de l'échantillon à analyser
06Préparation
CPC
G01N 30/02
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
30Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography ; or field flow fractionation;
02Column chromatography
G01N 30/06
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
30Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography ; or field flow fractionation;
02Column chromatography
04Preparation or injection of sample to be analysed
06Preparation
G01N 30/30
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
30Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography ; or field flow fractionation;
02Column chromatography
26Conditioning of the fluid carrier; Flow patterns
28Control of physical parameters of the fluid carrier
30of temperature
G01N 30/70
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
30Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography ; or field flow fractionation;
02Column chromatography
62Detectors specially adapted therefor
64Electrical detectors
70Electron capture detectors
Déposants TEFENG PHARMACEUTICAL CO., LTD.
特丰制药有限公司
Inventeurs YUN QI
云琦
YUAN ZIHUI
袁子惠
WU XIAOQING
吴小青
Mandataires 北京永新同创知识产权代理有限公司 11376
北京永新同创知识产权代理有限公司 11376
Titre
(EN) Method for determining content of chloroalkane in chloral hydrate or preparation thereof
(ZH) 测定水合氯醛或其制剂中氯代烷烃含量的方法
Abrégé
(EN) The invention provides a method for determining the content of chloroalkane in chloral hydrate or a preparation thereof by gas chromatography, which comprises the following steps of 1, precisely weighing a chloroalkane reference substance, and dissolving the chloroalkane reference substance in an organic solvent to obtain a reference substance solution, 2, dissolving or diluting a to-be-detected sample chloral hydrate or a preparation thereof with water or an inorganic salt aqueous solution optionally, adding an organic solvent for extraction, and taking an organic layer as a test solution, and 3, respectively detecting the reference substance solution and the test solution through gas chromatography, and calculating the content of the chloralkane.
(ZH) 本发明提供通过气相色谱法测定水合氯醛或其制剂中氯代烷烃的含量的方法,其包括以下步骤:第一步:精密称取氯代烷烃对照品,将其在有机溶剂中溶解,得到对照品溶液;第二步:将待测样品水合氯醛或其制剂任选地用水或无机盐水溶液溶解或稀释,加入有机溶剂进行萃取,取有机层作为测试溶液;以及第三步:通过气相色谱法分别检测对照品溶液和测试溶液,并计算氯代烷烃的含量。
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