Open Nav
- ProductsPharmaceutical Testing Reference Mterials
- Pharmaceutical Testing Reference Standards
- Impurity reference standards
- Reference materials from the National Institutes for Food and Drug Control (NIFDC)
- TCM pesticide residue blank matrix
- Analytical reference standards
- Traditional Chinese medicine (TCM) analytical reference standards
- TCM reference herbs
- Peptide reference standards
Standard Solutions- Standard Solution (Certified Reference Material, CRM)
- Titration Solution Reference Material
- Buffer Solution
- Colorimetric Solution
- Test Solution
- Indicator Solution
- GB/T 603 Solution（National Standard Solution for Chemical Reagent Preparation）
- Redox Standard Solution
- Single/Mixed Standard Solution Reference Materials
- About-Us
- Customization Services
- News
- Contact Us
中文
Ammonia nitrogen solution standard material
