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Phosphate (Individual Test Kits) |
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Phosphate: There are 3 colorimetric test methods. In two, a phosphomolybdate complex is reduced by stannous chloride or ascorbic acid to produce a blue color. In a third, phosphate forms a yellow complex with vanadomolybdate. |
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Order Code/Model |
Test System |
Range/Sensitivity |
# of Tests
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Shipping Code (Weight/lbs) |
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3114-01 |
Ascorbic Acid |
0.5, 1, 2, 3, 4, 6, 8, 10 ppm and 5, 10, 20, 30, 40, 60, 80, 100 ppm PO43– |
50 (2) |
HA (1) |
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3121-01 |
Ascorbic Acid Octet Comparator with Axial Reader |
0, 0.2, 0.4, 0.6, 0.8, 1.0, 1.5, 2.0 ppm PO43– | 50 (2) | HA (1) |
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3320-01 |
Stannous Chloride Octa-Slide |
Low: 1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 8.0, 10.0 ppm PO43– High: 10, 20, 30, 40, 50, 60, 80, 100 ppm PO43– |
50 (2) | HA (1) |
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3679-01 |
Ascorbic Acid Colorimeter |
0–3.0 ppm/0.07 ppm PO43– | 100 (2) | HA (7) |
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4401-01 |
Vanadate Molybdate Octet Comparator |
10, 20, 30, 40, 50, 60, 70, 80 ppm PO43– | 50 (1) | HA (1) |
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7068 |
Stannous Chloride Octet Comparator with BiColor Reader |
Low: 1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 8.0, 10.0 ppm PO43– High: 10, 20, 30, 40, 50, 60, 80, 100 ppm PO43– |
50 (2) | HA (1) |
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7416-01 |
Stannous Chloride Octet Comparator with Axial Reader |
0.05, 0.1, 0.2, 0.3, 0.4, 0.6, 0.8, 1.0 ppm PO43– | 50 (2) |
HA (1) |
| Phosphate (Total): Polyphosphates (acid-hydrolyzable or condensed) and phosphonates (organic phosphates) are reverted using the reagents and apparatus in the 7884 Auxiliary Phosphate kit. The polyphosphates require boiling or microwaving with acid and subsequent neutralization; the phosphonates require the same, but with the addition of an oxidizer in the boiling/microwaving step. Once reverted to orthophosphate, any of the tests in the orthophosphate section above may be used for analysis. |
B (2) |
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*(NPDWR) EPA Accepted
?(NPDES) EPA Accepted
Direct Reading Titrators have a specific range, but may be refilled to test higher concentrations.
LaMotte CompanyP.O. Box 329 | 802 Washington Avenue | Chestertown | Maryland | 21620 |
