Search results for keyword: chromatography
How to prevent liquid phase pump failure
Preventing Liquid Chromatograph Pump Failure
A liquid chromatograph pump is an essential component of liquid chromatography systems. Malfunctioning pumps can lead to data inaccuracies, undetected sample contaminations, chromatographs that won’t run and other problems. Proper maintenance and prev......
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Several problems that users should pay attention to when purchasing instruments
Purchasing laboratory equipment is an important process for any laboratory, as the choice of laboratory equipment can greatly affect the success of your experiment. Therefore, it is important to carefully consider various factors when purchasing laboratory equipment. Here are a few key points to c......
GB 10627-89 Preparation of standard gas mixture for gas analysis Static volumetric method
GB 10627-89 Preparation of Standard Gaseous Mixtures by Static Volumetric Method
This standard specifies a static volumetric method for the preparation of standard gaseous mixtures for the chemical analysis of gases. This method is mainly applicable to gaseous components which are miscible in the......
GB 4946-85 Gas chromatography Terminology
Gas chromatography is an analytical method utilized in many fields of science. It is an extremely useful tool for the separation, identification, and quantification of volatile and semi-volatile compounds. In order to facilitate communication between practitioners in the field, an international ga......
GB 8981-88 Determination of Trace Hydrogen in Gas Gas chromatography
Abstract
This paper introduces the determination of trace hydrogen in gases by gas chromatography method. The determination involves several steps including sample collection, sample treatment, column selection, instrumentation and data analysis. As this procedure is a sensitive quantitative anal......
GB8979-88 pure nitrogen technical indicators
GB8979-88 Pure Nitrogen Technology Indicators
Pure nitrogen technology measures the efficiency and performance of systems that use pure nitrogen as a part of their operations. It is used in applications such as food processing, medical device manufacturing, and storage vessel applications. The sta......
GB/T 14204-93 Water Quality Determination of Alkyl Mercury by Gas chromatography
GB/T 14204-93 Water Quality Determination of Alkyl Mercury Using Gas chromatography
The Chinese national standard GB/T 14204-93 defines the method of testing for alkyl mercury in water samples. The purpose of this method is to detect and quantify the concentrations of alkyl mercury present in wat......
GB/T 15263-94 Determination of Total Hydrocarbons in Ambient Air by Gas chromatography
GB/T 15263-94 Determination of total hydrocarbon in ambient air by gas chromatography
The determination of total hydrocarbons in ambient air is a measure of the particulate matter that bares the potential to be harmful to health. In order to determine the hypothesis and verify quantitative levels......
GB/T 8984.1-1997 Gas Chromatographic Determination of Carbon Monoxide, Carbon Dioxide and Methane
GB/T 8984.1-1997 Gas Chromatographic Method for Determination of Carbon Monoxide, Carbon Dioxide, and Methane
1 Introduction
Gas chromatography (GC) is a widely used analytical technique that can be used to separate and quantify gaseous components. It has been used to detect and measure levels ......
GB/T 8984.2-1997 Determination of total content of carbon monoxide, carbon dioxide and hydrocarbons in gases Gas chromatography
GB/T 8984.2-1997 Determination of Total Content of Carbon Monoxide, Carbon Dioxide and Hydrocarbons by Gas chromatography
This standard specifies the determination of total content of carbon monoxide, carbon dioxide, and hydrocarbons in gases by gas chromatography, and provides guidance for princ......
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