Merck, 1146940001, Oxygen Cell Test
Size:25 tests, photometric, 0.5-12.0 mg/L (O₂), Spectroquant®
Catalog Number: 1146940001
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Category
Pack Size25 tests
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| UNSPSC Code | 41116116 |
|---|---|
| Web Name Override | Oxygen Test, photometric |
| NACRES | NA.24 |
| product line | Spectroquant® |
| usage | sufficient for 25 tests |
| specific analyte(s) | oxygen |
| measuring range | 0.5-12.0 mg/L (O2) |
| technique(s) | photometry: suitable |
| application(s) | aquacultureboiler and cooling waterenvironmentalground and surface waterswimming pools |
| compatibility | for use with Spectroquant® Move 100 |
| detection method | photometric (mod. Winkler method) |
| storage temp. | 15-25°C |
| Quality Level | 100 |
Answer:The photometric measuring range is 0.5–12.0 mg/L of dissolved oxygen, expressed as O₂.
Answer:The package provides the reagents and cell-test materials for 25 determinations.
Answer:No. It measures oxygen with a modified Winkler color reaction in prefilled cells and a compatible photometer.
Merck Spectroquant Oxygen Cell Test measures dissolved oxygen in suitable water samples by a modified Winkler photometric procedure. Its working range is 0.5 to 12.0 mg/L expressed as oxygen, with reagents sufficient for 25 determinations. Dissolved oxygen first oxidizes manganese(II) to manganese(III); in an acidic reaction medium the resulting species produces a colored complex that can be quantified photometrically. The test uses prefilled 16 mm round reaction cells and is compatible with selected Spectroquant photometers, including Prove and Move instruments with the appropriate method program. Measure promptly after sample collection because gas exchange and biological activity can change dissolved oxygen concentrations. Avoid bubbles when taking aliquots, maintain consistent reaction timing and ensure the cells are clean before measurement. Turbid samples can create positive photometric interference. The procedure is intended for drinking, ground and surface water, not as a universal method for seawater. Store the kit at 15–25 °C and handle its corrosive reagents with suitable protection.
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