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Drinking Water Test 16 in 1
Category:
Detailed
Intended Use:
This product can be used for the detection of Nitrate, Nitrite, Free chlorine, Total chlorine, Bromine, Hydrogen peroxide, Total hardness, Carbonate, Cyanuric acid, pH, Copper, Zinc, Mercury, Tin, Beryllium, Aluminium in water (drinking water and its source, well water, surface water, spring water, mineral water, etc.).
Principle:
Nitrate: A reducing agent can reduce nitrate in water to form nitrite, which, along with the existing nitrite in water, diazotized with N-(1-Naphthyl) ethylenediamine, and then react with sulfonamide to produce a purple azo dye.
Nitrite: Under acidic conditions, nitrite in water is diazotized with N-(1-Naphthyl) ethylenediamine, and then react with sulfonamide to produce a purple azo dye.
Free chlorine: N, N-diethyl-p-phenylenediamine react rapidly with free chlorine in water to form a red dye, and the color depth is proportional to the content of Free chlorine.
Total chlorine: Oxidizing chlorides and Cl2 react with Redox reagent to produce a blue dye, and the color depth is proportional to the total oxidizing chlorine content.
Bromine: Bromine react with N, N-diethyl-p-phenylenediamine to produce a red dye, and the color depth is proportional to Bromine content.
Hydrogen peroxide: Hydrogen peroxide react with tetramethylbenzidine under existing of peroxidase and produce a blue dye.
Total hardness: Calcium and Magnesium ions in water react with mixed indicators to form a purple chelates.
Carbonate: Carbonate react with complex indicators to form a blue dye.
Cyanuric acid: Cyanuric acid react with complex indicator to produce a purple dye and the depth of color is proportional to the concentration of Cyanuric acid.
pH: Under different pH values, the acid base indicator will display different color changes.
Copper: In ammonia solution, copper ions react with copper reagent to form a brownish yellow complex and the depth of color is proportional to the concentration of copper ions.
Zinc: Zinc ions react with zinc reagent to form a blue complex and the depth of color is proportional to the content of zinc ions.
Mercury: Mercury ions react with Dithizone to produce a purple complex and the depth of color is proportional to the content of mercury ions.
Tin: Tin ions (Sn2+) react with Ammonium molybdate to produce a blue compound and the color depth is proportional to the content of tin ions.
Beryllium: In neutral or acidic media, beryllium ions react with Beryllon to form a red complex and the depth of the color is proportional to the content of beryllium ions.
Aluminum: In a neutral solution, aluminum ions react with Aluminon in the presence of polyethylene glycol octylphenyl ether and Hexadecylpyridinium bromide to form a blue quaternary complex and the depth of color proportional to the content of aluminum ions.
Product Testing Scope
|
Item |
Detection Concentration Range |
Unit |
|||||||
|
Nitrate+Nirite |
0 |
2.5 |
5 |
10 |
25 |
50 |
100 |
|
mg/L(ppm) |
|
Nitrite |
0 |
0.25 |
0.5 |
1 |
2.5 |
5 |
10 |
25 |
mg/L(ppm) |
|
Free Chlorine |
0 |
0.5 |
1 |
3 |
5 |
10 |
25 |
50 |
mg/L(ppm) |
|
Total Chlorine |
0 |
0.5 |
1 |
3 |
5 |
10 |
|
|
mg/L(ppm) |
|
Bromine |
0 |
1 |
5 |
10 |
20 |
|
|
|
mg/L(ppm) |
|
Hydrogen peroxide |
0 |
0.5 |
1 |
3 |
5 |
10 |
30 |
100 |
mg/L(ppm) |
|
Total Hardness |
0 |
100 (<6°d) |
125 (7°d) |
250 (14°d) |
450 (25°d) |
|
|
|
mg/L(ppm) （°d ） |
|
Carbonate |
0 |
40 |
80 |
120 |
180 |
240 |
|
|
mg/L(ppm) |
|
Cyanuric acid |
0 |
30-50 |
100 |
150 |
300 |
|
|
|
mg/L(ppm) |
|
pH |
6.2 |
6.8 |
7.2 |
7.6 |
7.8 |
8.4 |
|
|
|
|
Copper |
0 |
1 |
2.5 |
5 |
10 |
30 |
100 |
300 |
mg/L(ppm) |
|
Zinc |
0 |
0.5 |
1 |
2.5 |
5 |
10 |
25 |
50 |
mg/L(ppm) |
|
Mercury |
0 |
1 |
2.5 |
5 |
10 |
25 |
50 |
100 |
mg/L(ppm) |
|
Tin |
0 |
10 |
25 |
50 |
100 |
250 |
500 |
|
mg/L(ppm) |
|
Beryllium |
0 |
0.1 |
0.25 |
0.5 |
1 |
2.5 |
5 |
10 |
mg/L(ppm) |
|
Aluminium |
0 |
0.2 |
0.5 |
1 |
3 |
10 |
30 |
100 |
mg/L(ppm) |
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