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Weiyel Reference Materials

Weiyel launches a full range of reference materials covering pesticide residues, veterinary drug residues, and food additives.

Published:2026-03-12 15:50 Editor:Weiyel

Addressing the three core risks at the source of edible agricultural products—planting and breeding—Weiyel offers a full range of standard reference materials covering pesticide residues, veterinary drug residues, and food additives.

1. Pesticide Residue Detection Series: Provides single and mixed standard solutions for hundreds of commonly used and new pesticides, including thiamethoxam and thiamethoxam, ensuring accurate quantification for high-risk varieties such as chili peppers, ginger, and onions.

Recommended products for thiamethoxam and thiamethoxam detection in food (contact customer service for more products):

Product No. Product Name     Value Specifications
BWN0061-2016 Thiamethoxam Standard 99.0% 250mg
BWN0059-2016 Thiamethoxam Standard 99.5% 250mg

2. Veterinary Drug Residue Detection Series: Covers standards for commonly used veterinary drugs in livestock, poultry, and aquatic products, such as enrofloxacin and doxycycline, providing reliable references for monitoring animal-derived products such as eggs and freshwater fish.

Recommended products for enrofloxacin and doxycycline detection in food (contact customer service for more products):

Product No. Product Name ValueValueValue Specifications
BWJ5844-2016 Enrofloxacin Standard 99.89% 100mg
BWJ5706-2016 Enrofloxacin-D5 isotope standard 2Components 1mg
BWJ4604-2016 Doxycycline (Doxycycline) Standard 98.0% 100mg
BWJ4685-2016 Doxycycline hydrochloride standard 99.0% 50mg
BWJ5706-2016 Enrofloxacin-D5 isotope standard 2Components 10mg

3. Food Additives and Illegal Additives Detection Series: Offers high-purity sulfur dioxide (and sulfite) standard materials, as well as standards for commonly used additives such as cyclamate and dehydroacetic acid, effectively addressing issues of illegal use in preservation and color enhancement processes.

Recommended products for determining sulfur dioxide residue in food (more products available upon request from customer service):

Product No. Product Name Value Specifications
BWB2217-2016 Standard reference material for sulfur dioxide solution 100μg/mL 50mL
BWZ7817-2016 sulfur dioxide solution standard substance 1000μg/mL 50mL
BWZ7087-2016 Formaldehyde method for determining sulfur dioxide using matching reagents / 6pieces/set
BWZ7045-2016 Sodium sulfite solution standard for sulfur dioxide detection 100μg/mL 20mL
BWZ9032-2016 Reagent set for sulfur dioxide determination (formaldehyde buffer-hydrochloric acid pararosaniline spectrophotometric method) / 6pieces/set
BWZ6462-2016 Reagents for the determination of sulfur dioxide in food (titration method) / 4pieces/set
BWZ6463-2016 Reagents for the determination of sulfur dioxide in food (spectrophotometric method) / 7pieces/set

Recommended products for detecting dehydroacetic acid in food (more products available upon request from customer service):

Product No. Product Name     Value Specifications
BWJ4140-2016 Dehydroacetic acid standard 99.80% 100mg
BWQ8394-2016 Dehydroacetic acid solution standard in ethyl acetate 1000μg/mL 2mL
BWQ7688-2016 Standard reference material of dehydroacetic acid solution in methanol 100μg/mL 1.2mL
BWQ7687-2016 Standard reference material of dehydroacetic acid solution in methanol 1000μg/mL 1.2mL
BWQ0157-2016 Standard reference material for dehydroacetic acid solution in ethyl acetate (with label) 6Components 1.2mL
BWQ7042-2016 Standard substance of dehydroacetic acid solution in ethanol 1000μg/mL 2mL
BWQ9719-2016 Dehydroacetic acid label in sodium hydroxide aqueous solution 6Components 1.2mL

Recommended products for detecting cyclamate in food (more products available upon request from customer service):

Product No. Product Name     Value Specifications
BWJ4358-2016 Cyclamate (sodium cyclohexylsulfamate) Standard 99.90% 250mg
BWJ5191-2016 Cyclamate-D4 Standard 98.2% 10mg
BWQ7622-2016 Cyclamate (sodium cyclohexylsulfamate) Solution Standard 10.0mg/mL 5mL
BWQ9849-2016 Sodium cyclohexylsulfamate-D4 Solution Standard 100μg/mL 1.2mL
BWQ9791-2016 Sodium cyclohexylsulfamate Solution Standard 6mg/mL 5mL
BWQ9792-2016 Sodium cyclohexylsulfamate Solution Standard 1200μg/mL 5mL
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