Articles-APL Technology Group (Chengdu) Co., Ltd

Configuration of anti-pollution system for non-methane total hydrocarbon automatic sampler
2026-1-21 The detection of non-methane hydrocarbons demands extremely high purity of the sample, as even trace amounts of cross-contamination can directly lead to distorted detection data. The automatic sampler for non-methane hydrocarbons, equipped with a comprehensive anti-pollution system, addresses multiple aspects from sample transfer and pipeline cleaning to sample chamber protection, ensuring accurate and reliable detection results. It is suitable for various sample testing needs, including ambient air, exhaust gas, and water quality.
What are the advantages and disadvantages of the five headspace analysis sampling methods of the headspace sampler?
2025-3-28 The headspace sampler is a convenient and rapid sample pretreatment method in gas chromatography. Its principle involves placing the sample to be tested in a sealed container, heating it to raise the temperature, allowing volatile components to evaporate from the sample matrix, achieving equilibrium in the gas-liquid (or gas-solid) two-phase system, and directly extracting the top gas for chromatographic analysis, thereby examining the composition and content of volatile components in the sample.
The difference in needle length of automatic headspace sampler and its impact on experimental results
2024-1-23 In modern laboratory analysis, the automatic headspace sampler, as an important analytical tool, is widely used in various fields such as environmental monitoring, pharmaceutical research, the food industry, as well as chemical engineering and geology. Its core function lies in accurately introducing samples into gas chromatographs for analysis, and the length of the needle becomes one of the key factors affecting this function.
Characteristics and precautions of automatic purging and trapping device
2022-12-7 The automatic purge and trap device is an efficient and precise sample pretreatment equipment.
Application and precautions of automatic dilution system
2022-12-7 An automatic dilution system typically comprises components such as an input, output, dilution chamber, sample, and diluent. During operation, a known quantity of sample is injected into the dilution chamber. Subsequently, the filtered diluent flows into the chamber to mix with the sample and continuously dilute it.
Complete analysis of the usage method and precautions for microwave digestion instrument
2022-12-7 In modern laboratory analysis, microwave digestion technology has become the primary choice for sample pretreatment due to its efficiency, speed, and effective pollution control. Microwave digestion instruments utilize microwave heating to create a high-temperature and high-pressure environment within a sealed container, rapidly decomposing complex substances in organic or inorganic samples, facilitating subsequent elemental analysis.

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