01 Solution Summary
Naphthalene, benz[a]anthracene, and other 9 polycyclic aromatic hydrocarbons in cosmetic finished products and their creams, lotions, oils, and other matrices are analyzed by GC-MS. Gas chromatography performs component separation, and the mass spectrometry system performs compound identification and determination based on the ion information specified by the method. Quantitation and quality control use the following arrangements: identification is performed using target analyte retention behavior and method-specified characteristic ions, and calibration relationships are established using reference materials corresponding to 9 polycyclic aromatic hydrocarbons including naphthalene and benz[a]anthracene; each batch of samples uses blanks, calibration checks, and spiked or QC samples to monitor contamination, response drift, and matrix effects. The analysis batch is also set up 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 |
|---|---|---|---|
| GB/T 29670-2013 | Determination of 9 polycyclic aromatic hydrocarbons including naphthalene and benz[a]anthracene in cosmetics—Gas chromatography-mass spectrometry | Current; the review conclusion dated 2025-05-30 remains valid | Official source |
03 Samples and Analytes
The specific samples areCosmetic finished products and their creams, lotions, oils, and other matrices, and the analytes are9 polycyclic aromatic hydrocarbons including naphthalene and benz[a]anthracene. Pretreatment, injection, and detection configurations are determined according to the sample state, target concentration, and the formal method adopted.
04 Method Principle
The treated sample enters the GC via a liquid autosampler, and the target components are separated according to differences in volatility and interaction with the stationary phase.
The separated components sequentially enter the MS. Mass spectrometric data combined with retention behavior are used for identification; identification is performed using target analyte retention behavior and method-specified characteristic ions, and calibration relationships are established using reference materials corresponding to 9 polycyclic aromatic hydrocarbons including naphthalene and benz[a]anthracene; each batch of samples uses blanks, calibration checks, and spiked or QC samples to monitor contamination, response drift, and matrix effects for quantitation and batch quality control.
05 Sample Collection and Pretreatment
Cosmetic finished products and their creams, lotions, oils, and other matrices are subjected to solvent extraction to form an injection solution or gas-phase sample suitable for GC-MS; reagent blanks, container blanks, and process blanks are used to identify background contamination.
06 Separation and Detection
The GC separation flow path reduces co-elution interference, and the MS acquires characteristic ion signals of the target compounds. This workflow uses MS to perform identification and detection.
07 Instrument System Configuration
| Module | Configuration | Role in This Solution |
|---|---|---|
| Sample preparation | Solvent extraction | Prepare samples suitable for GC-MS |
| GC separation system | GC main unit, sample introduction interface, and column | Separation of 9 polycyclic aromatic hydrocarbons including naphthalene and benz[a]anthracene |
| Mass spectrometry system | MS | Compound identification and detection |
| Data system | Identification is performed using target analyte retention behavior and method-specified characteristic ions, and calibration relationships are established using reference materials corresponding to 9 polycyclic aromatic hydrocarbons including naphthalene and benz[a]anthracene; each batch of samples uses blanks, calibration checks, and spiked or QC samples to monitor contamination, response drift, and matrix effects | Ion data processing, calibration, and review |
08 Huishi Instruments system configuration
This application requiresGC-MS hyphenated systemComplete the analysis of 9 polycyclic aromatic hydrocarbons including naphthalene and benz[a]anthracene. When selecting a configuration, the injection interface, detector, and data system should be determined based on the sample state of cosmetic finished products and their creams, lotions, oils, and other matrices, the liquid autosampler, and detection requirements.
09 Analysis workflow
10 Qualitative, Quantitative, and Quality Control
Identification is based on the retention behavior and ion information specified by the method; for quantitative execution, identification is completed using target analyte retention behavior and method-specified characteristic ions, and calibration relationships are established using reference materials corresponding to 9 polycyclic aromatic hydrocarbons including naphthalene and benz[a]anthracene; each batch of samples uses blanks, calibration checks, and spiked or QC samples to monitor contamination, response drift, and matrix effects. Within the batch, blanks, calibration checks, and matrix-related QC are set up.
11 Method and Configuration Selection
- GC performs separation, and MS performs identification and detection.
- The injection and cleanup steps are configured around the matrix characteristics of cosmetic finished products and their creams, lotions, oils, and other matrices.
- The mass spectrometry acquisition and data processing methods remain consistent.
12 Frequently Asked Questions
Why use GC-MS for 9 polycyclic aromatic hydrocarbons including naphthalene and benz[a]anthracene?
GC-MS matches the physicochemical properties, sample inlet, and detection targets of 9 polycyclic aromatic hydrocarbons including naphthalene and benz[a]anthracene, and the complete workflow simultaneously covers the treatment, separation, detection, and data quality control of cosmetic finished products and their creams, lotions, oils, and other matrices.
What samples is this solution applicable to?
Applicable samples are cosmetic finished products and their creams, lotions, oils, and other matrices. 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 analytes are 9 polycyclic aromatic hydrocarbons including naphthalene and benz[a]anthracene, and the main text and configuration are both 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.
What are the respective roles of GC and MS in this protocol?
GC separates 9 polycyclic aromatic hydrocarbons including naphthalene and benz[a]anthracene from coexisting components, and MS performs identification and determination based on ion information.
13 Related Solutions and Knowledge
14 References
Get Configuration and Technical Consultation
Please provide sample information for cosmetic finished products and their creams, lotions, oils, and other matrices, the concentration ranges of 9 polycyclic aromatic hydrocarbons including naphthalene and benz[a]anthracene, testing batch size, method basis, and existing equipment. Huishi Instruments will prepare the configuration list accordingly.
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