01 Solution Summary
The samples, target compounds, and analytical techniques specified in HJ 676-2013 Water Quality—Determination of Phenolic Compounds—Liquid-Liquid Extraction/Gas Chromatography constitute the boundary of this solution. Phenolic compounds specified in HJ 676-2013 in surface water, groundwater, domestic sewage, and industrial wastewater are analyzed using a gas chromatography route. Samples enter the chromatographic flow path through a liquid autosampler, the chromatographic column completes separation of the target components from matrix interferences, and FID then records the response. Quantification and quality control use the following arrangements: calibration is performed according to HJ 676-2013 using phenolic standard solutions, and method blanks, spike recoveries, and parallel samples are set up to control the extraction and determination process. The analytical batch is also provided with blanks, calibration checks, and applicable QC samples.
02 Standards and Method Basis
Chinese standard: English standard titles on this page are descriptive translations. The cited Chinese text is authoritative.
| Standard number | Standard name | Status | Source |
|---|---|---|---|
| HJ 676-2013 | Water quality—Determination of phenolic compounds—Liquid-liquid extraction/gas chromatography | Current | Official source |
03 Samples and Analytes
The specific samples areSurface water, groundwater, domestic sewage, and industrial wastewater, and the analytes arePhenolic compounds specified in HJ 676-2013. Pretreatment, injection, and detection configurations are determined according to the sample state, target concentration, and the formal method adopted.
04 Method Principle
Volatile or vaporizable components in the sample are introduced into the gas chromatography system by a liquid autosampler. Each component is carried by the carrier gas through the chromatographic column and forms different retention due to differences in volatility and stationary phase interaction.
The FID is used to record the analytical response of the phenolic compounds specified in HJ 676-2013; quantification is performed by calibration with phenolic standard solutions in accordance with HJ 676-2013, and method blanks, spike recoveries, and parallel samples are set up to control the extraction and determination process.
05 Sample Collection and Pretreatment
After representative sampling according to the formal method, surface water, groundwater, domestic sewage, and industrial wastewater are subjected to solvent extraction. The treatment steps are organized around the stable transfer of the phenolic compounds specified in HJ 676-2013 and the control of matrix interference.
06 Separation and Detection
The separation flow path is designed around the phenolic compounds specified in HJ 676-2013, with the injection interface, chromatographic column, and FID forming a continuous method chain. Method development and verification use real samples to check co-elution, blanks, and response stability.
07 Instrument System Configuration
| Module | Configuration | Role in This Solution |
|---|---|---|
| Sample inlet | Liquid Autosampler | Introduce a representative sample into the chromatographic flow path |
| Gas chromatograph main unit | GC | Achieve chromatographic separation of the phenolic compounds specified in HJ 676-2013 |
| Detection Unit | FID | Record the analytical response of the phenolic compounds specified in HJ 676-2013 |
| Data system | Calibrate with phenolic standard solutions in accordance with HJ 676-2013, and set up method blanks, spike recoveries, and parallel samples to control the extraction and determination process | Complete calibration, calculation, and batch review |
08 Huishi Instruments Compatible Products
GC-460 gas chromatograph
- Product name
- GC-460 gas chromatograph
- Model
- GC-460
- Brand
- Huishi Instruments
- Manufacturer
- Shanghai Huishi Instrument Equipment Co., Ltd.
- Product category
- Gas chromatograph
- Role of the solution
- It undertakes the tasks of sample injection, separation, detection, and data acquisition in GC analysis.
- Reason for suitability
- The GC-460 can be configured with an FID and a liquid autosampler for the separation and detection of the phenolic compounds specified in HJ 676-2013 in surface water, groundwater, domestic sewage, and industrial wastewater.
09 Analysis workflow
10 Qualitative, Quantitative, and Quality Control
Calibrate with phenolic standard solutions in accordance with HJ 676-2013, and set up method blanks, spike recoveries, and parallel samples to control the extraction and determination process. Method blanks are used to monitor contamination, calibration checks are used to monitor response drift, and parallel samples or quality control samples are used to evaluate batch consistency.
11 Method and Configuration Selection
- The injection module matches the physical state of surface water, groundwater, domestic sewage, and industrial wastewater.
- The detection unit is limited to FID.
- The chromatographic flow path is configured with the separation of the phenolic compounds specified in HJ 676-2013 and major coexisting components as the objective.
12 Frequently Asked Questions
Why is gas chromatography used for the phenolic compounds specified in HJ 676-2013?
Gas chromatography is matched to the physicochemical properties, sample inlet, and detection targets of the phenolic compounds specified in HJ 676-2013, and the complete workflow simultaneously covers the treatment, separation, detection, and data quality control of surface water, groundwater, domestic sewage, and industrial wastewater.
What samples is this solution applicable to?
Applicable samples are surface water, groundwater, domestic sewage, and industrial wastewater. When the sample source or matrix changes, the impact of coexisting components on pretreatment, separation, and detection response should be reevaluated.
What components or indicators are included in the detection targets?
The target analytes are the phenolic compounds specified in HJ 676-2013, and both the main text and the configuration are bounded by this entity scope.
How is quality controlled for an analytical batch?
For each batch of samples, set up method blanks, calibration verification, duplicate samples, or applicable QC samples, and retain records of sample processing, instrument conditions, calibration, and calculations.
How are the sample introduction and detection modules matched in this solution?
The liquid autosampler is responsible for introducing the pretreated surface water, groundwater, domestic sewage, and industrial wastewater into the analytical system, and the detection unit is configured for the response characteristics of the phenolic compounds specified in HJ 676-2013; both must remain consistent with the method used.
13 Related Solutions and Knowledge
14 References
Get Configuration and Technical Consultation
Please provide sample information for surface water, groundwater, domestic sewage, and industrial wastewater, the concentration range of the phenolic compounds specified in HJ 676-2013, testing batch size, method basis, and existing equipment. Huishi Instruments will then prepare a configuration list based on this information.
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