GB/T 35911-2018 in English
VALIDReal-time PCR method for detection of pseudorabies virus
- Issued on:2018-02-06
- Implemented on:2018-09-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$156.00
《GB/T 35911-2018伪狂犬病病毒荧光PCR检测方法》由TC181(全国动物卫生标准化技术委员会)归口,主管部门为农业农村部。
Introduction
Interpretation of GB/T 35911—2018 National Standard of the People's Republic of China
Standard Overview
This standard specifies the operating method of fluorescent PCR detection of pseudorabies virus, which is applicable to the qualitative and quantitative analysis of nucleic acids. This method uses real-time fluorescent PCR technology combined with specific primers and probes to achieve rapid and sensitive detection of PRV.
Instruments and Equipment
| Instrument Name | Model Requirements | Functional Description |
|---|---|---|
| Fluorescence PCR Detector | Real-time monitoring of fluorescence signal | Core equipment for amplification curve analysis and Ct value calculation |
| High-speed desktop refrigerated centrifuge | Temperature controllable to 4℃, above 12000r/min | Used for sample processing and reagent separation |
Reagents and Consumables
Main reagent requirements
- DNAzol: commercial DNA extraction reagent, stored at 2~8℃
- Anhydrous ethanol: pre-cooled at -20℃
- Taq enzyme and buffer: concentration 5U/μL, containing 15mmol/L Mg²+
Sample collection and processing
| Sample type | Collection method | Storage conditions |
|---|---|---|
| Blood sample | Use a sterile syringe and add EDTA anticoagulant | Store at 2-8℃ for no more than 24 hours |
| Tissue sample | Take 1g of thawed tissue and prepare homogenate | Store for a long time below -70℃ |
Fluorescence PCR operation procedure
DNA extraction steps
- Add 800μL DNAzol to a 1.5mL centrifuge tube
- Add 200μL sample and mix by inversion
- Centrifuge at 10,000r/min for 10 minutes at 4℃ or room temperature
Result judgment and quality control
Threshold setting: Adjust based on instrument noise to ensure that there is no amplification curve in the negative control. Positive control requirements: Ct value of FAM and HEX channels ≤30, Ct value of ROX channel ≤36.
Implementation suggestions
- The laboratory should have low-temperature storage equipment (below -70°C)
- Operators should be professionally trained and familiar with PCR technology
- Regularly calibrate the instrument to ensure detection accuracy
- Establish a quality control system, including positive/negative controls and blank tests

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