01 Solution Summary
Petroleum hydrocarbons (carbon number range specified by the method) in surface or deep soil samples are analyzed using a gas chromatography route. Samples enter the chromatographic flow path through a liquid autosampler; the chromatographic column completes the separation of target components from matrix interferences, and then the FID records the response. Quantitation and quality control use the following arrangements: identification is performed based on the retention behavior of target components and reference materials; calibration is performed using reference materials corresponding to petroleum hydrocarbons (carbon number range specified by the method) by external standard or internal standard according to the applicable method; injection blanks, calibration checks, and parallel determinations are used to monitor contamination and response stability. Each analytical batch also includes blanks, calibration checks, and applicable quality control samples.
02 Standards and Method Basis
Method basis: application method. The laboratory may enter the name and version of the adopted formal method into the project file.
03 Samples and Analytes
The specific samples areSurface or deep soil samples, and the analytes arePetroleum hydrocarbons (carbon number range specified by the method). 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 petroleum hydrocarbons (within the carbon number range specified by the method); quantification uses identification based on the retention behavior of the target components and reference materials, using reference materials corresponding to petroleum hydrocarbons (within the carbon number range specified by the method) for external standard or internal standard calibration according to the applicable method; injection blanks, calibration checks, and parallel determinations are used to monitor contamination and response stability.
05 Sample Collection and Pretreatment
Surface or deep soil samples are subjected to solvent extraction. The processing steps are organized around the stable transfer of petroleum hydrocarbons (within the carbon number range specified by the method) and control of matrix interference.
06 Separation and Detection
The separation flow path is designed around petroleum hydrocarbons (within the carbon number range specified by the method), with the sample introduction interface, chromatographic column, and FID forming a continuous method chain. Method development and validation 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 | Complete the chromatographic separation of petroleum hydrocarbons (within the carbon number range specified by the method) |
| Detection Unit | FID | Record the analytical response of petroleum hydrocarbons (within the carbon number range specified by the method) |
| Data system | Identification is performed based on the retention behavior of the target components and reference materials, using reference materials corresponding to petroleum hydrocarbons (within the carbon number range specified by the method) for external standard or internal standard calibration according to the applicable method; injection blanks, calibration checks, and parallel determinations are used to monitor contamination and response stability. | 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 petroleum hydrocarbons (within the carbon number range specified by the method) in surface or deep soil samples.
09 Analysis workflow
10 Qualitative, Quantitative, and Quality Control
Identification is performed based on the retention behavior of the target components and reference materials, using reference materials corresponding to petroleum hydrocarbons (within the carbon number range specified by the method) for external standard or internal standard calibration according to the applicable method; injection blanks, calibration checks, and parallel determinations are used to monitor contamination and response stability. 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 sample introduction module is matched to the physical state of the surface or deep soil samples.
- The detection unit is limited to FID.
- The chromatographic flow path is configured with the goal of separating petroleum hydrocarbons (within the carbon number range specified by the method) and major co-existing components.
12 Frequently Asked Questions
Why is gas chromatography used for petroleum hydrocarbons (within the carbon number range specified by the method)?
Gas chromatography is matched to the physicochemical properties, sample inlet, and detection objectives of petroleum hydrocarbons (within the carbon number range specified by the method), and the complete route also covers the treatment, separation, detection, and data quality control of surface or deep soil samples.
What samples is this solution applicable to?
The applicable samples are surface or deep soil samples. When the sample source or matrix changes, the impact of coexisting components on pretreatment, separation, and detection response should be re-evaluated.
What components or indicators are included in the detection targets?
The target analyte is petroleum hydrocarbons (within the carbon number range specified by the method), and both the main text and 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.
What information is required before configuration?
It is recommended to provide real samples, a list of target compounds, expected concentration ranges, testing batch size, the method to be followed, and existing equipment conditions.
How are results kept traceable?
Sample numbers, reference materials, processing batches, instrument methods, raw data, calibration results, and review records together form the result traceability chain.
13 Related Solutions and Knowledge
Get Configuration and Technical Consultation
Please provide sample information for the surface or deep soil samples, the concentration range of petroleum hydrocarbons (within the carbon number range specified by the method), testing batch size, method basis, and existing equipment. Huishi Instruments will then prepare a configuration list based on this information.
Information submitted.