Can I use a spectroscopy grade solvent for HPLC?

Often the UV performance is similar, but spectroscopy grades are not always filtered to 0.2 µm or tested for residue and gradient behaviour. For HPLC, a purpose-made HPLC grade is the safer choice.

Why does potassium bromide need its own grade?

KBr discs for IR must be transparent across the mid-IR range and free of water, which absorbs strongly. Spectroscopy grade KBr is dried and tested for clear background, and it should be stored in a desiccator.

What causes fluorescence background in a solvent?

Traces of aromatic compounds and some stabilisers fluoresce under UV excitation. Fluorescence grade solvents are purified to remove them, and the COA reports background against a quinine sulfate reference.

Chemical grade

Spectroscopy Grade chemicals

Solvents and salts with guaranteed transmittance in the UV, visible or IR region and low fluorescence, for spectrophotometric work.

155 products in this grade

Spectroscopy Grade products

145–155 of 155 products

Titanium dioxide, for spectroscopy ≥99.00%

CAS: 13463-67-7
Formula: O₂Ti
MW: 79.87 g/mol

ZX-038287

Toluene, for HPLC, for spectroscopy ≥99.8%

CAS: 108-88-3
Formula: C₇H₈
MW: 92.14 g/mol

ZX-036999

Toluene, for spectroscopy 99.8%

CAS: 108-88-3
Formula: C₇H₈
MW: 92.14 g/mol

ZX-001880

Trichloroethylene, for spectroscopy

CAS: 79-01-6
Formula: C₂HCl₃
MW: 131.38 g/mol

ZX-037118

Triethylamine, for HPLC, for spectroscopy ≥99.50%

CAS: 121-44-8
Formula: C₆H₁₅N
MW: 101.19 g/mol

ZX-037170

Trifluoroacetic acid, for HPLC, for spectroscopy 99.8%

CAS: 76-05-1
Formula: C₂HF₃O₂
MW: 114.02 g/mol

ZX-037000

Trifluoroacetic acid, for spectroscopy

CAS: 76-05-1
Formula: C₂HF₃O₂
MW: 114.02 g/mol

ZX-037435

Uracil, for spectroscopy

CAS: 66-22-8
Formula: C₄H₄N₂O₂
MW: 112.09 g/mol

ZX-038042

Water, for HPLC, for spectroscopy

CAS: 7732-18-5
Formula: H₂O
MW: 18.02 g/mol

ZX-037073

α-Benzoin oxime, for spectroscopy

CAS: 441-38-3
Formula: C₁₄H₁₃NO₂
MW: 227.26 g/mol

ZX-038195

β-NAD, for spectroscopy ≥95.00%

CAS: 53-84-9
Formula: C₂₁H₂₇N₇O₁₄P₂
MW: 663.4 g/mol

ZX-038348

Compare with other grades

HPLC Grade GC Grade AR Grade (Analytical Reagent)ACS Grade LR Grade (Laboratory Reagent)Extra Pure Grade Molecular Biology Grade LC-MS Grade IP Grade (Indian Pharmacopoeia)BP Grade (British Pharmacopoeia)USP Grade (United States Pharmacopeia)Ph. Eur. Grade (European Pharmacopoeia)Food Grade (FCC)Technical Grade Electronic Grade Deuterated and Stable-Isotope-Labelled Compounds Pharmaceutical Secondary Reference Standards Grades guide

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