Grade guide
Spectroscopy Grade chemicals
Solvents with guaranteed optical transmittance in the UV, visible and IR regions, and low fluorescence, for spectrophotometric measurement.
155 Spectroscopy Grade products
Alcian blue 8GX, for spectroscopy, for microscopy 50%
- CAS
- 33864-99-2
- Formula
- C56H70Cl4CuN16S4
- MW
- 1300.9 g/mol
VQ-046141
Amido black 10B, LR, for spectroscopy, for electrophoresis
- CAS
- 1064-48-8
- Formula
- C22H14N6Na2O9S2
- MW
- 616.5 g/mol
VQ-046718
FAQs
Can I use HPLC grade solvent for UV spectroscopy?
Usually, yes. HPLC grade solvents have specified UV absorbance and are often suitable, provided the wavelengths you use are covered by the specification.
What is a solvent's UV cutoff?
The wavelength below which the solvent's own absorbance, in a 1 cm cell, exceeds about 1 AU, making measurements unreliable.
Why is fluorescence grade needed?
Fluorescence is far more sensitive than absorbance, so trace fluorescent impurities that are invisible in UV can dominate an emission spectrum.
Other grades
HPLC GradeGC GradeAR Grade (Analytical Reagent)ACS GradeLR Grade (Laboratory Reagent)Extra Pure GradeMolecular Biology GradeLC-MS GradeIP Grade (Indian Pharmacopoeia)BP Grade (British Pharmacopoeia)USP Grade (United States Pharmacopeia)Ph. Eur. Grade (European Pharmacopoeia)Food Grade (FCC)Technical GradeElectronic GradeDeuterated & Stable-Isotope-Labelled CompoundsPharmaceutical Secondary Reference Standards
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