Food (veterinary drug residue) detection

This part of GB/T 18932 specifies the method for the determination of residual amounts of 5-methylmethylmethyl-3-amino-2-zolidinone, aminourea, 1-amino-2-endourea, and 3-amino-2-zolidinone metabolites in honey. This section is applicable to the determination of residues of 5-methylmorpholine-3-amino-2-azolidinone, aminourea, 1-amino-2-endourea, and 3-amino-2-azolidinone in honey. The detection limit of the method in this section is 0.2 ug/kg for 5-methylmolin-3-amino-2-azolidinone and 3-amino-2-azolidinone; 0.5 ng/kg for aminourea and 1-amino-2-lactourea. 2 Normative References: The clauses in the following documents are referred to in this part of GB/T 18932 and become the clauses of this part. For dated reference documents, all subsequent amendments (excluding corrected content) or revisions do not apply to this section. However, parties to agreements based on this section are encouraged to study whether the latest versions of these documents can be used. For undated references, the latest version applies to this section. The precision of the GB/T 6379 testing method is determined by interlaboratory testing to determine the repeatability and reproducibility of the standard testing method (GB/T6379-1986) NEQ ISO 5725: 1981) GB/T 6682 Specification and Test Methods for Analytical Laboratory Water (GB/T 6682-1992, NEQ ISO 36961987) 3. The residual metabolites of nitrofuran antibiotics in the principle sample are derivatized with 2-nitrobenzaldehyde under acidic conditions, and purified with Oasis HLB or equivalent solid-phase extraction column. Electrospray ionization, liquid chromatography tandem mass spectrometry, external standard method for quantification

Function of testing report:

1. Project bidding: Issue authoritative third-party CMA/CNAS qualification report

2. Online e-commerce platform entry: Quality inspection report recognized by major e-commerce platforms

3. Used as a sales report: issuing legally effective testing reports to make consumers more confident

4. Papers and research: Provide professional personalized testing needs

5. Judicial services: providing scientific, fair, and accurate testing data

6. Industrial problem diagnosis: Verify the troubleshooting and correction of industrial production problems

BAIJIAN testing process:

1. Telephone communication and confirmation of requirements

2. Recommend solutions and confirm quotations

3. Mail samples and arrange testing

4. Progress tracking and result feedback

5. Provide reports and after-sales service

6. If urgent or priority processing is required

Our Competitive Edge:

1. The testing industry is fully covered, meeting different testing needs

2. Fully cover the laboratory and allocate localized testing nearby

3. Engineers provide one-on-one services to make testing more accurate

4. Free initial testing, with no testing fees charged

5. Self service order delivery for free on-site sampling

6. Short cycle, low cost, and attentive service

7. Possess authoritative qualifications such as CMA, CNAS, CAL, etc

8. The testing report is authoritative and effective, and is generally used in China