Description
Emerald Scientific Water, HPLC Grade 4 x 4L
This water is specially purified by conventional water softening, prefiltration, activated carbon organic adsorption, reverse osmosis, mixed bed triple deionization, ultraviolet light irradiation, and 0.2 micron membrane filtration.
Product Identifiers:
- CAS No - 7732-18-5
This product is manufactured by a continuous process that has been validated to produce high purity Water meeting, as a minimum, the specifications
below.
Specifications:
| Test | Specifications |
| Chloride (Cl) | max 0.4 ppm |
| Conductivity at 25°C | max 0.056 μS/cm |
| Heavy Metals (as Pb) | max 0.01 ppm |
| LC Suitability (Absorbance) | To Pass Test |
| LC Suitability (Gradient Elution Test) | To Pass Test |
| Nitrate (NO2) | max 0.4 ppm |
| Organic Carbon (TOC) | max 50 ppb |
| Oxidizable Substances (Permanganate Retention) | To Pass Test |
| Phosphate (PO2) | max 1.0 ppm |
| Silicate (as SiO2) | max 0.01 ppm |
| Sulfate (SO2) | max 1.0 ppm |
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