Other project detection

1. Scope: This standard specifies the content of tryptamine in food β- Method for the determination of phenylethylamine, putrescine, cadaverine, histamine, octopamine, tyramine, spermidine, and spermine content. This standard is applicable to the determination of biogenic amines in alcoholic beverages (wine, beer, yellow wine, etc.), seasonings (vinegar and soy sauce), and aquatic products (fish and their products, shrimp and their products) and meat. 2 principles of aquatic products (fish and their products, shrimp and their products), meat; The sample was extracted with 5% trichloroacetic acid, fat was removed with n-hexane, and purified with trichloromethane n-butanol (1+1) liquid-liquid extraction. Dansulfoyl chloride derivatization was performed on a Ca chromatographic column, followed by HPLC UV detector detection and internal standard quantification. Liquor (wine, beer, yellow wine, etc.), seasoning (vinegar and soy sauce): The sample is derived with dansulfoyl chloride, separated by a Ca column, detected by high-performance liquid chromatography with ultraviolet detector, and quantified by internal standard method. Unless otherwise specified, all reagents and materials used in this method are analytical pure, and the water is the first grade water specified in GB/T 6682. 3.1 Reagent 3.1.1 Acetonitrile (CH, CN): Chromatically pure. 3.1.2 Acetone (C, H, O): Chromatically pure. 3.1.3 Ether (C, H,. O): re evaporated. 3.1.4 n-butanol (CHOO). 3.1.5 Chloroform (CHC1,) 3.1.1.6 n-hexane (C.Hjw>: chromatographically pure. 3.1.7 Acetic acid (CH, COOH: chromatographically pure. 3.1.8 Ammonium acetate (CH, COO NH): chromatographically pure. Sodium glutamate (C, H, NNaO,) 3.1.10 Sodium bicarbonate (NaHCO,) 3.1.11 Sodium chloride (NaC1). 3.1.12 Sodium hydroxide (NaOH). 3.1.13 Hydrochloric acid (HC1.37%). 3.1.14 Triaminoacetic acid (CHClO:)

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