Description
Quantofix® test strips for nitrate and nitrite provide semi-quantitative colourimetric determination of NO3 and NO2 in aqueous samples. Each strip measures 95 mm in length by 6 mm in width and is supplied in packs of 100 pc(s). Graduated reading scales cover nitrate at 0-10-25-50-100-250-500 and nitrite at 0-1-5-10-20-40-80, enabling quick differentiation of concentration steps without laboratory photometers. Pack weight is 0,045 kg, convenient for routine stock and portable test kits. These Quantofix® strips from manufacturer MACHEREY-NAGEL belong to established test-paper systems used across measuring instruments and water-related quality checks. Typical use includes screening of process water, environmental samples and educational demonstrations where both nitrate and nitrite levels are of interest. The dual-parameter design reduces the need for separate strip types when both ions must be assessed. Compact strip geometry supports economical immersion and clear visual comparison against the printed scale after the prescribed reaction time.
This article is part of Test strips & indicator papers, in Test kits & water analysis.
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What is this article?
Quantofix® test strips, nitrate/nitrite, L 95 x W 6 mm, 100 unit(s) is the article on this page. Luminix Health distributes Macherey-Nagel for laboratory use. It sits in Test strips & indicator papers, inside Test kits & water analysis, in Lab chemicals.
A test strip or indicator paper changes colour when it meets an ion, a pH or another analyte. It is a fast, coarse reading. The scale printed on the pack is the only scale that strip may be read against. A wet finger contaminates a pH paper before the sample does.
A test kit turns a chemical question into a colour, a titre or a reading on a strip, so the operator does not have to assemble the method from separate reagents. A cuvette test is a ready optical cell. A strip is a field reading. The range printed on the kit is the range where the answer means something. Outside it, the kit is silent or wrong. The substances inside are on PubChem. Water measurement traces to NIST.
Which category should I open next?
The category is Test kits & water analysis. The sub-category is Test strips & indicator papers. The catalogue is Lab chemicals.
Shelves beside this one are Cuvette tests (Nanocolor), Colorimetric test kits and Test inks & surface tension.
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The technical information on this page is the manufacturer's sheet. Read that, not a rewritten specification.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.

