Quality Control and Proficiency Samples
SPEX CERTIPREP LLC 3P Trace Metals STND 2/PK
NSI Lab Solutions PEI-016 Trace Metals Drinking Water Proficiency Test; 2/PK
SPEX CERTIPREP LLC 3P Turbidity STND 2/PK
NSI Lab Solutions PEI-014 Turbidity Drinking Water Proficiency Test; 2/PK
ERA WATERS CORP Bromide - 1000mg/l, 12ml
One 125ml standard containing Bromide at 1000mg/l in H2O. This CRM is covered by ERA's ISO Guide 34 accreditation.
SPEX CERTIPREP LLC 3P Minerals QC CRM 500 mL
NSI Lab Solutions QCI-136 Minerals QC Concentrate Certified Reference Material, 500 mL; 1/EA
SPEX CERTIPREP LLC 3P Complex Nutrients QC CRM 21mL
NSI Lab Solutions QCI-139 Complex Nutrients QC CRM, 21mL Single
ERA WATERS CORP NITRITE QC STANDARD
Nitrite, One 2mL flame-sealed ampule yielding up to 2 liters of sample, Nitrite as N
Avanti Polar Lipids 7α-Hydroxycholesterol, Powder, 10 mg
7α-Hydroxycholesterol (cholest-5-en-3β,7α-diol) is a highly pure lipid used in scientific research to explore its various biological roles, including its function in bile acid synthesis and its contribution to immune responses. This compound is provided as a stable powder and is suitable for a range of applications in the study of lipid standards.
- High purity lipid with over 99% purity
- Physical state: Powder
- Molecular formula: C27H46O2
- Storage temperature: -20°C
- Stability: 1 year
- Non-hygroscopic and non-light sensitive
- Packaged as 1 x 10 mg
- Shipped in dry ice
ERA WATERS CORP TRACE METALS
One 15 mL screw-cap vial yields up to 1 liter after dilution. Use with AA, ICP-OES or ICP-MS and selected colorimetric methods.
