Monosubstituted benzenes show a weak, fine-structured band near 255 nanometres and a much stronger band below 220. At 9 grams per litre the weak band is easily measurable and the strong band is very high. At 280 nanometres the contribution is small but not zero. The shape is the same as that of toluene and other simple aromatics.
It does not absorb in the visible, so it is colourless.
A peptide without aromatic residues is measured near 214 nanometres, exactly where the preservative absorbs most. Without a matched blank the apparent concentration is inflated; with one, the subtraction is large and the result less precise. Chromatographic methods separate the preservative from the peptide and avoid the problem, which is one reason purity is determined by HPLC rather than by direct absorbance.
The retention time of benzyl alcohol is a known peak in any reversed-phase run on a solution made with this water.
Which water to use for what. It states a spectroscopic property of the preservative and its consequence for one kind of measurement.
Bacteriostatic water is supplied by REVIVE LAB UAE as a diluent for lyophilised research peptides, for laboratory research use only. It is not for human or veterinary use, and no dosing, administration or protocol guidance is provided.
| Format | Strength | Price | Availability |
|---|---|---|---|
| Bacteriostatic Water | 3 mL × 2 | AED 99 | 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.
Monosubstituted benzenes show a weak, fine-structured band near 255 nanometres and a much stronger band below 220. At 9 grams per litre the weak band is easily measurable and the strong band is very high. At 280 nanometres the contribution is small but not zero. The shape is the same as that of toluene and other simple aromatics.
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.