GB/T 33318-2016 in English
VALIDGas analysis--Determination of sulfide--Gas chromatography with sulfur chemiluminescence
- Issued on:2016-12-13
- Implemented on:2017-07-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
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《GB/T 33318-2016气体分析 硫化物的测定 硫化学发光气相色谱法》由TC206（全国气体标准化技术委员会）归口，TC206SC1（全国气体标准化技术委员会气体分析分会）执行，主管部门为中国石油和化学工业联合会。
Introduction
GB/T33318—2016 Standard Overview
GB/T33318—2016 is my country's first standardized method for the determination of sulfide in gas, using sulfur chemiluminescence gas chromatography, and is applicable to a variety of gas environments such as industrial gas and natural gas. This standard has important guiding significance in the fields of environmental protection and petrochemicals.
Background of Standard Formulation and Technological Evolution
| Time Dimension | Technical Features | Application Fields |
|---|---|---|
| Before 2016 | Traditional detection methods were inefficient and insufficiently sensitive | Mainly used in laboratory research |
| In 2016 | Sulfur chemiluminescence detectors were introduced | Covering multiple fields such as industry and environmental protection |
| Currently | Optimize chromatographic separation technology to improve sensitivity and accuracy | Widely used in gas quality control |
Through the comparison, it can be seen that the formulation of this standard marks an important progress in my country's sulfide detection technology.
Method principle and technical points
- Core principle:After the sulfur compounds in the sample are separated by gas chromatography, sulfur monoxide (SO) is generated in the combustion pool, and reacts with ozone to produce a characteristic light signal.
- Detector type:Sulfur chemiluminescence detector, suitable for high-sensitivity detection.
- Key steps:Chromatographic separation → Combustion → Chemiluminescence → Signal acquisition and analysis.
Instrument and reagent requirements
Recommended instruments:
- Gas chromatograph equipped with sulfur chemiluminescence detector
- Hydrogen flame ionization detector (HFID)
- Dynamic volumetric mixed gas preparation system
Calibration curve and result calculation
Calibration curve preparation: Use the least squares method to fit the relationship between the chromatographic response value and the concentration to ensure that the correlation coefficient r ≥ 0.99.
Formula example:
ρ_i = A_i × b + a
Where: ρ_i is the concentration of the component to be measured, A_i is the chromatographic peak area, a and b are determined by the calibration curve.
Implementation recommendations and quality control
- Regular calibration:All measuring equipment must be calibrated and confirmed to meet the requirements for use.
- Standard sample management:It is recommended to use standard samples prepared in GB/T5274 to ensure concentration accuracy.
- Operation specifications:Strictly follow the instrument manual and standard operating procedures.
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