Weiyel Reference Materials
info@weiyel.com
Warm congratulations to Weiye for its successful approval of 14 national secondary standard materials! Following the successful declaration of 34 biological matrix reference materials (including 28 primary reference materials) and 18 benzene series and pesticide residues, after 2 weeks, Weiye has embarked on a new journey!
The national secondary reference materials passed this time include 10 pesticide residues and 4 environmental chemical analysis reference materials, all of which are in stock, welcome to inquire, and the relevant product information is as follows:
| Product number | Product Name | Concentration（μg/mL） | Uncertainty（%） |
| GBW(E)085011 | Urea nitrogen solution reference material | 1000 (calculated in terms of nitrogen content) | 1 |
| GBW(E)085010 | Urea nitrogen solution reference material | 100 (calculated in terms of nitrogen content) | 2 |
| GBW(E)085013 | Urea solution reference material | 1000（calculated in terms of urea content） | 1 |
| GBW(E)085012 | Urea solution reference material | 100（calculated in terms of urea content） | 2 |
| Product number | Product Name | Concentration（μg/mL） | Uncertainty（%） |
| GBW(E)085004 | Standard substance of cis-permethrin solution in n-hexane | 100 | 3 |
| GBW(E)085005 | Standard substance of cis-permethrin solution in n-hexane | 1000 | 2 |
| GBW(E)085006 | Standard substance of trans-permethrin solution in n-hexane | 100 | 3 |
| GBW(E)085007 | Standard substance of trans-permethrin solution in n-hexane | 1000 | 2 |
| GBW(E)085008 | Standard substance of pentachloronitrobenzene solution in n-hexane | 100 | 3 |
| GBW(E)085009 | Standard substance of pentachloronitrobenzene solution in n-hexane | 1000 | 2 |
| GBW(E)085000 | Isobacterium urea solution standard substance in acetone | 100 | 3 |
| GBW(E)085001 | Isobacterium urea solution standard substance in acetone | 1000 | 2 |
| GBW(E)081714 | Standard substance of bentazone solution in acetone | 100 | 3 |
| / | Standard substance of bentazone solution in acetone | 1000 | 2 |
So far, Weiye has successfully approved 585 national primary and secondary reference materials. In the follow-up, Weiye will continue to increase investment in research and development to bring better products and services to our customers. To learn more, click on the online customer service for consultation.
To support the implementation of standards and environmental monitoring, Weiyel has recently launched a range of quality control samples for perfluorinated compounds, suitable for method validation, quality control, and laboratory proficiency testing.
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