Time runs along the bottom: compounds leave the column in order of how strongly they interact with it, so retention time is an identity clue under fixed conditions. Detector response runs up the side, usually UV absorbance at a wavelength where peptide bonds or aromatic residues absorb.
A peak is a compound leaving the column. Its area is proportional to how much arrived at the detector, which is why purity is quoted as an area percentage rather than a height one.
Ninety-eight per cent purity means the main peak carries 98 per cent of the integrated area. It does not say what the other two per cent is, and two per cent of one impurity is a different situation from two per cent spread across six.
Nor does an area percentage account for anything the detector cannot see. A species that does not absorb at the chosen wavelength contributes nothing to the total and is therefore invisible to the calculation — one of the reasons mass spectrometry is run alongside rather than instead.
A flat, quiet baseline, a symmetrical main peak rather than one with a shoulder or a tail, small peaks that are resolved from the main one rather than riding on it, and integration marks placed where the peak actually starts and ends. A peak integrated generously across a shoulder inflates the number without any chemistry changing.
Also check that the method conditions are stated: column, mobile phase and gradient, detection wavelength. A purity figure without its method is not reproducible and not comparable with anyone else's figure.
GHK-Cu is a metal complex, and chromatography of metal complexes can be affected by the mobile phase and by any chelating component in it. This is why identity is confirmed by mass spectrometry as well, and why the analytical questions for a copper peptide are not identical to those for a plain peptide.
Batch identity and purity data for material supplied by REVIVE LAB UAE are available on request. Research use only.
| Format | Strength | Price | Availability |
|---|---|---|---|
| GHK-Cu Duo Pack | 2 × 50 mg | AED 1090 | In stock |
Delivery is AED 40 flat and free on orders over AED 700. Payment is cash on delivery anywhere in the UAE, or USDT (TRC20) in advance, which takes 5% off the order total.
Time runs along the bottom: compounds leave the column in order of how strongly they interact with it, so retention time is an identity clue under fixed conditions. Detector response runs up the side, usually UV absorbance at a wavelength where peptide bonds or aromatic residues absorb.
No. REVIVE LAB UAE supplies research materials and provides no dosing, administration or protocol guidance of any kind. Every product is sold for laboratory research use only and is not for human or veterinary consumption.
Stock is held in Dubai. An order confirmed before 4 PM Dubai time is dispatched the same working day, reaching Dubai and Abu Dhabi the same day and the remaining emirates within 24 hours. Delivery is AED 40 flat and free over AED 700.
Supplied for laboratory research use only. Not for human or veterinary consumption. REVIVE LAB UAE provides no dosing, administration or protocol guidance.