01 Solution Summary
The extract of the finished food product or food raw material undergoes extraction and cleanup and filtration to form a sample suitable for liquid injection; HPLC completes the separation of sweeteners (acesulfame potassium, sodium saccharin, etc.), and UV and DAD acquire responses. Quantification and quality control use the following arrangements: standard solutions matched to the target sweeteners are used to establish external standard calibration relationships, and method blanks, calibration checks, and duplicate samples are used to control batch quality. The analytical batch is also set up with blanks, calibration checks, and applicable QC 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 areFood finished products or food raw material extracts, and the analytes areSweeteners (Acesulfame Potassium, Sodium Saccharin, etc.). 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 is introduced into the HPLC by an automatic liquid sampler. The target analytes exhibit different retention between the mobile phase and the chromatographic column, thereby separating from matrix components.
UV and DAD record the responses of sweeteners (acesulfame potassium, sodium saccharin, etc.); standard solutions matched to the target sweeteners are used to establish external standard calibration relationships, and method blanks, calibration checks, and duplicate samples are used to control batch quality.
05 Sample Collection and Pretreatment
After representative food samples are taken, the extract of the finished food product or food raw material undergoes extraction and cleanup and filtration according to the method used. The sample solvent, filtration material, and final volume are kept consistent between calibration samples and actual samples.
06 Separation and Detection
The HPLC system consists of mobile phase delivery, a liquid autosampler, a liquid chromatography column, and UV and DAD. The column, mobile phase, and detection conditions are determined by the retention and response characteristics of the sweeteners (acesulfame potassium, sodium saccharin, etc.).
System suitability, blanks, and calibration checks are used to confirm resolution, baseline, and response stability.
07 Instrument System Configuration
| Module | Configuration | Role in This Solution |
|---|---|---|
| Sample preparation | Extraction and cleanup, filtration | Formation of a sample suitable for liquid injection |
| Liquid phase delivery | HPLC pump and mobile phase system | Stable mobile phase delivery |
| Injection System | Liquid Autosampler | Repeated sample injection |
| Separation system | Liquid chromatography column matched to target analytes | Separate sweeteners (acesulfame potassium, sodium saccharin, etc.) |
| Detection Unit | UV, DAD | Acquire target analyte responses |
08 Huishi Instruments system configuration
This application requiresHigh-performance liquid chromatography systemComplete the analysis of sweeteners (acesulfame potassium, sodium saccharin, etc.). During model selection, the injection interface, detector, and data system should be determined in combination with the sample state of the finished food product or food raw material extract, the liquid autosampler, and the detection requirements.
09 Analysis workflow
10 Qualitative, Quantitative, and Quality Control
Standard solutions matched to the target sweeteners are used to establish external standard calibration relationships, and method blanks, calibration checks, and duplicate samples are used to control batch quality. Method blanks, calibration checks, duplicate samples, and applicable spike samples are used to evaluate the preparation process and instrument response.
11 Method and Configuration Selection
- Sample preparation matches the matrix characteristics of the finished food product or food raw material extract.
- UV and DAD are used to acquire responses for sweeteners (acesulfame potassium, sodium saccharin, etc.).
- Do not apply the air DNPH derivatization route to food, oil products, or other liquid samples.
12 Frequently Asked Questions
Why is HPLC used for sweeteners (acesulfame potassium, sodium saccharin, etc.)?
HPLC matches the physicochemical properties, sample inlet, and detection objectives of sweeteners (acesulfame potassium, sodium saccharin, etc.), and the complete workflow simultaneously covers the treatment, separation, detection, and data quality control of the finished food product or food raw material extract.
What samples is this solution applicable to?
Applicable samples are finished food products or food raw material extracts. When the sample source or matrix changes, the effects 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 sweeteners (acesulfame potassium, sodium saccharin, etc.); 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 extract from finished food products or food raw materials into the analysis system; the detection unit is configured for the response characteristics of the sweeteners (acesulfame potassium, sodium saccharin, etc.); both must remain consistent with the method used.
Why are extraction, cleanup, and filtration necessary?
This step is used to transfer the sweeteners (acesulfame potassium, sodium saccharin, etc.) into a sample compatible with the liquid-phase flow path, and to reduce the effects of particles and matrix on separation and detection.
13 Related Solutions and Knowledge
Get Configuration and Technical Consultation
Please provide sample information for the finished food product or food raw material extract, the concentration range of the sweeteners (acesulfame potassium, sodium saccharin, etc.), the testing batch size, the method basis, and the existing equipment. Huishi Instruments will then prepare the configuration list.
Information submitted.