Detection of heavy metals in aquatic products

Test item: heavy metal detection

Service Details Service Evaluation ->

Aquatic products are mainly animal based

It is divided into freshwater fish, freshwater shrimp, freshwater crab, seawater fish, seawater shrimp, seawater crab, shellfish, and other aquatic products

Freshwater fish include herring, grass carp, silver carp, bighead carp, crucian carp, carp, mud carp, salmon (salmon), mandarin fish, round head bream, Changchun bream, bream (triangular bream), silver carp, snakehead (black fish), loach, catfish, shad, perch, eel, tilapia, rainbow trout, eel, sturgeon, huso, and other freshwater fish

Freshwater shrimp include green shrimp, river shrimp, grass shrimp, white shrimp, crayfish, and other freshwater shrimp

Freshwater crabs include crabs, hairy crabs (hairy crabs), etc

Sea fish include large yellow croaker, small yellow croaker, yellow croaker, white croaker, hairtail, pomfret, Spanish mackerel (mackerel), mackerel, Chinese herring, bass, herring, scad, puffer fish, grouper, flounder, butterfly, sardine, anchovy, cod, sea eel, ray, shark, snapper, goldfish and other sea fish

There are also many standards for aquatic product testing, such as DB12/T 3015-2018 Operating Regulations for Cold Chain Logistics of Aquatic Products, DB12/T 563-2015 Operating Regulations for Cold Chain Logistics of Aquatic Products, and DB13/T 2232-2015 Specification for Identification of Edible Aquatic Products. However, in addition to this, there are also numerous projects, such as physical and chemical projects that are relatively common, mainly to detect sulfur dioxide formaldehyde, lipid peroxide, etc. in aquatic products. Of course, microbiological projects also need to be carried out, including testing for the presence of Staphylococcus aureus, colorectal cancer bacteria, or Salmonella, etc

At present, the quality problems of aquatic products mainly include the following aspects: excessive drug residues (such as antibiotics such as clavomycin, nitrofuran, enrofloxacin, etc.); Weight gain, bleaching (or coloring), and anti-corrosion of aquatic products; Formaldehyde exceeds the standard; Affected by water pollution, heavy metals exceed the standard

Test items

1. Sensory indicators

Appearance, color, odor, tissue, and freshness.

2. Freshness index

Volatile base nitrogen

3. Safety and health index

(1) Limit of heavy metals and harmful elements in aquatic products: mercury, arsenic, lead, cadmium, copper, selenium, fluorine, chromium

(2) Drug residue limits in aquatic products: Oxytetracycline, tetracycline, iodoamines, chloramphenicol, penicillin, furazolidone, quinoline, and diethylstilbestrol shall not be detected. Dipterex, hexachlorocyclohexane, Didizu, imidophos

(3) Toxic and harmful substance: sulfur dioxide

(4) Limit of biological toxins and microbial indicators: Paralytic shellfish toxin (PSP), Diarrheal shellfish toxin DSP, total bacterial count, coliform group, pathogenic bacteria.

Aquatic product related detection standards

GB 2733-2015 | National Food Safety Standard for Fresh and Frozen Animal Aquatic Products

GB/T 20756-2006 | Determination of Chloramphenicol, Thiamphenicol, and Flufenicol Residues in Edible Animal Muscle, Liver, and Aquatic Products - Liquid Chromatography-Tandem Mass Spectrometry

GB/T 152 0173 3840-2005 | Malachite Green and Crystal Violet Residues in Aquatic Products

Determination of Amounts

Announcement No. 783 of the Ministry of Agriculture -1-2006 | Determination of Nitrofuran Metabolites Residues in Aquatic Products - Liquid Chromatography Tandem Mass Spectrometry

Announcement No. 1077 of the Ministry of Agriculture -1-2008 | Determination of 17 Sulfonamides and 15 Quinolones Residues in Aquatic Products - Liquid Chromatography Tandem Mass Spectrometry

GB/T 22338-2008 | Determination of Chloramphenicol Residues in Animal Derived Foods

GB/T 18109-2011 | Frozen Fish

GB 4789.4-2 016 | National Food Safety Standard Food Microbiological Examination Salmonella Examination

GB 4789.7-2013 | National Food Safety Standard Food Microbiological Examination Vibrio parahaemolyticus Examination

GB 4789.10-2016 | National Food Safety Standard Food Microbiological Examination Staphylococcus aureus Examination

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