A Certificate of Analysis (CoA) is one of the most important documents in the supply of nicotine ingredients. It connects a physical batch with its tested quality results and gives the buyer a basis for acceptance, release and further use.
Start With Product Identity
A CoA should clearly identify the supplied material.
- Product name and grade
- Nicotine concentration or assay basis
- Relevant CAS number, where applicable
- Batch or lot number
- Supplier CoA number and issue date
- Quantity or batch size, where relevant
- Manufacturing date
- Retest or expiry date, where applicable
The information should provide a clear connection between the document and the physical batch being supplied.
Batch Number Matching
The batch number shown on the CoA should match the batch number on:
Confirm the Specification and Batch Results
A useful CoA should present the approved acceptance criteria alongside the actual result for the supplied batch.
| Test | Specification | Batch Result |
|---|---|---|
| Identification | Approved requirement/method | Actual result |
| Assay / Nicotine Content | Agreed specification | Actual tested result |
| Related Substances / Impurities | Approved limits | Actual tested result |
| Water Content | Approved limit | Actual tested result |
| Residual Solvents | Where applicable | Actual tested result |
| Appearance | Defined requirement | Observed result |
Review the Test Methods
The CoA should identify the test method used, or refer to an approved analytical method or specification revision.
Where a material is described as USP, EP or USP/EP grade, buyers should confirm:
- Which specification or monograph is referenced
- Which tests are included in the release specification
- Whether customer-specific tests are included
- Whether the stated grade is appropriate for the intended application
A pharmacopoeial reference is an important quality reference, but it does not automatically mean that a material is approved for every product, application or country. Buyers should complete their own technical and regulatory assessment.
Check Release and Accountability
A complete CoA should demonstrate that the batch has been reviewed and released by an authorised quality representative.
The document should be legible, controlled and traceable to the supplier's quality system.
Request Supporting Documents
A CoA is important, but it should not be reviewed in isolation.
Change notification — if the source, supplier, process or packaging has changed.
A Better Buying Decision
A good CoA helps a buyer understand the product, verify the supplied batch and manage quality risk before material enters production.
At Arenico, the objective is to provide clear, batch-specific documentation to support customer review. Where a customer has a specific technical specification or documentation requirement, it is useful to discuss those requirements before ordering so that the documentation package can be reviewed in advance.
Discuss Documentation Requirements