Uni-chem Chemical Reagents Certificate Of Analysis High Quality

This indicates the overall purity of the reagent. For analytical reagents, this is typically or higher.

When the chemical was synthesized or packaged. uni-chem chemical reagents certificate of analysis

I can do that. Please either paste the full Certificate of Analysis (CoA) text or upload a clear image/PDF of it. I’ll review for: conformity to specs, completeness (identification, batch/lot, dates, tests, methods, acceptance criteria, units, purity, impurities, water content, residual solvents, assay, limits, analyst/signature), any red flags, and recommended next steps. This indicates the overall purity of the reagent

An official signature or stamp from the quality control department confirming the batch conforms to American Chemical Society (ACS) or other regulatory grades. How to Access Your CoA I can do that

When reading the document, always check the value first to confirm it matches the strict requirements of your protocol. Next, examine the Impurity list. For example, if you are performing trace metal analysis using atomic absorption spectroscopy, even a minute trace of iron or copper listed on the CoA could invalidate your baseline readings. Storage and Document Management Best Practices

: Ensure the number you are entering is the one labeled "Lot" or "Batch" on the bottle, as these are mandatory for generating the specific analysis report for that production run.

| Parameter | Specification | Result | Method | | :--- | :--- | :--- | :--- | | Appearance | Clear, colorless liquid | Conforms | Visual | | Assay (GC) | ≥ 99.9% | 99.93% | GC-FID | | Water (KF) | ≤ 0.02% | 0.009% | Karl Fischer | | UV Absorbance (254 nm) | ≤ 0.010 AU | 0.007 AU | UV Spectro | | Residue after Evaporation | ≤ 2.0 mg/L | < 1.0 mg/L | Gravimetric |