THA2710 helium ionization detector

THA2710Helium ionization detector

Instrument functions

THA2710Helium ionization detectorCan be installed on gas chromatography analyzers as detectors for chromatographic analysis, used for quantitative analysis of various gas component concentrations. Due to the high sensitivity of the analysis module, it is suitable for analysis in different concentration ranges, especially for trace or trace gas analysis, and makes chromatographic analysis more convenient and accurate.

working principle

Helium ionization detectorUsing a high-frequency and high-voltage power supply, a high-energy electric field excites helium atoms to a high-energy state, causing ionization and producing a large number of metastable helium atoms（He*）And electronics‌Unstable helium atoms have high energy, and when they collide with sample molecules, they transfer energy to the sample molecules, causing them to ionize and produce positive ions and electrons‌The electric field inside the detector accelerates the movement of ions, and positive ions and electrons are collected by the collecting electrode and positive electrode respectively, generating a current signal corresponding to the sample concentration‌.
Technical Specifications

Working environment temperature: (5～40)℃；

Output signal:pA；

24VDC power supply: ≥10WRipple current ≤120mVp-p；

Gas interface:1/16Inches;

Flow range:20mL/min～30mL/min；

technical indicators

Analysis components:H₂,O₂,N₂,CH₄,CO,CO₂,H₂S,N₂O,C_nH_mWait;

Carrier gas: high-purity helium gas;

Detection limit: ≤10ppb；

Dust content: ≤0.1um；

Weight: Approximately0.5kg.

technical advantage

uHighly sensitive to most organic and inorganic compounds, with a detection limit of up to10^-12level‌.

uWide linear range, capable of simultaneously detecting high and low concentration sample components‌.

uThe sample retention time is short and the response is rapid.

uThe electrode is not easily contaminated and the detector has a long service life.

Typical Engineering Application Fields

uenvironmental monitoring‌Detection of trace harmful gases in the atmosphere, water bodies, and soil‌.

upetrochemical‌Analysis of Trace Impurities in Natural Gas, Liquefied Gas, Refinery Gas and Other Samples‌.

ufood safety‌Detection of harmful substances such as pesticide residues and additives in food‌.

uelectronics industry‌Analysis of Trace Impurities in High Purity Gases‌.