SN/T 4675.10-2016 in English

VALID

Determination of ochratoxin A in wine for export―LC-MS/MS method

Issued on:2016-12-12
Implemented on:2017-07-01
File Format:PDF
Delivery:Via email within 1~3 business days

Price(USD)： $160.00
$156.00

Standard No:	SN/T 4675.10-2016
Document status:	VALID
Title in English:	Determination of ochratoxin A in wine for export―LC-MS/MS method
Title in Chinese:	出口葡萄酒中赭由霉毒素A的测定液相色谱—质谱/质谱法
Language:	English
File Format:	Electronic (PDF)
Delivery:	Via email within 1~3 business days
Issued on:	2016-12-12
Implemented on:	2017-07-01
Professional Classification:	SN-Import&Export Inspection
Related Keywords:	export ― lc-ms/ms method introduction standard overview sn/t special method standard internal standard method method validation validation export industry
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Introduction

Standard Overview

SN/T 4675.10-2016 is a special method standard in the import and export industry standard series for the detection of ochratoxin A in wine products. It uses liquid chromatography-mass spectrometry technology (LC-MS/MS) for quantitative analysis.

Technical Points

Core Parameters	Requirements	International Comparison
Detection Limit	0.20μg/L	EU Standard 0.50μg/L
Chromatographic Column	C18 Column (2.1mm×50mm,1.9μm)	Equivalent to USP L1
Mass Spectrometry Mode	ESI Negative Ion MRM	Meets CODEX Requirements

Operation Procedure

Sample Pretreatment: Immunoaffinity column cleanup was used, followed by extraction with phosphate buffer (pH 6.9-7.1) and filtration through a 0.22μm filter prior to injection.

Mass Spectrometry Conditions: Two characteristic ion pairs, m/z 402→211 and 402→358, were selected, with collision energies of -38V and -28V, respectively.

Method Validation

Validation by six laboratories demonstrated recoveries of 86.7%-117.4% within the concentration range of 0.20-4.00μg/L, with a relative standard deviation of ≤7.9%.

Implementation Recommendations

1. It is recommended to use the isotope internal standard method to improve quantitative accuracy
2. Regularly calibrate the mass axis deviation of the mass spectrometer
3. Each batch of samples must include a blank matrix spike control

More samples: JJG 21-2008 NB/T 47013.2-2015 QC/T 942-2021

Sample only — not a preview of SN/T 4675.10-2016

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