Analysis Case - Detection of Residual Organic Solvents such as Dimethylformamide and Ethanol in Drugs by Gas Chromatography "is provided by Tengzhou Zhongkepu. For details, please contact Wang ：：www.zkpyq.comOur company also provides you with cost-effective gas chromatographs, liquid chromatographs, high-performance liquid chromatographs, and Hubei liquefied gas/Hunan liquefied gas/Shanxi liquefied gas dimethyl ether analyzer,gas chromatograph,Liquid chromatograph,Liquefied gas analyzer,Baijiu chromatograph,Transformer oil spectrophotometer,Solvent Residual Chromatography Analyzer,Pesticide residue analyzer,Natural gas analyzer,Dimethyl ether detector,Gas chromatography consumables,Nitrogen hydrogen air generator,Packed Column,liquid chromatographic column,Chromatographic accessories,Gas chromatography valve,Headspace bottle,gas-purifier,Deoxygenation tube,Capping pliers,Gasification pad,Micro injector,capillary/Fill the column stone ink pad,Flat gas injection six way valve,Second-hand chromatography Welcome to purchase!

At present, there is no unified national standard for the detection of residual solvents in drugs. In the guiding principles for residual organic solvents, dichloromethane and DMF are listed as the second category of toxic reagents that must be controlled, and ethanol and acetone are listed as the third category of low toxicity solvents. It is necessary to establish a rapid analytical method for determining residual solvents in drugs. For this reason, Tengzhou ZhongkepuUsing a headspace sampler for sampling,gas chromatographyCapillary column separation, analysis and determination of common residual solvents (ethanol, dichloromethane, NN dimethylformamide, dimethyl sulfoxide) in drugs. The experimental results indicate that the headspace capillary columngas chromatographyFast, simple, and accurate methods are ideal for determining residual solvents in drugs.

1. Chromatograms of ethanol, dichloromethane, and NN dimethylformamide in drugs

2. Instrument configuration and reagents

GC-2020Detection of residual organic solvents such as dimethylformamide and ethanol in drugs by gas chromatographycharacteristic:

use320 x 240dot matrix5.7An inch large screen LCD Chinese display, real-time display of various temperatures and operating conditions, clear and intuitive content, truly realizing human-machine dialogue;
2Power on self-test, wide range self diagnostic function, can accurately determine the fault location and alarm;
3Six independent temperature controls (vaporization chamber and capillary vaporization chamber can be independently controlled), Five level program heating function;
4Overtemperature Protection function: If any circuit exceeds the set temperature, the instrument will automatically power off and sound an alarm;
5The vertical heating device of * makes sample vaporization more reliable, reduces the heat radiation generated in the vaporization chamber to the minimum, and ensures minimal temperature deviation inside the column box;
6Intelligent fuzzy control rear door opening system, automatically tracks temperature and dynamically adjusts The angle of the air door can achieve precise temperature control even near room temperature;
7Configure filling column head injection, glass lining injection, with diaphragm cleaning Functional capillary diversion/Non split injection device and capable of installing gas injectors;
8High precision dual stable gas path, capable of installing four types of detectors simultaneously;
9Optional electronic flow pressure display system with built-in workstation device.