Macherey-Nagel, 91321, Quantofix Chloride, Box Of 100 Strips

Test sticks for the semi-quantitative determination of chloride (Cl û ) in solutions Gradation of scale: 0-500-1000-1500-2000 ? 3000 mg/l Cl û brown to yellowQUANTOFIX « Chloride uses the same general principle as the AQUADUR « test sticks.In the pH range 2 to 12 the reaction is independent of the pH value of the solution to be analysed. Strongly acidic solutions have to be adjusted to pH 5 û 7 with sodium hydroxide solution, alkaline solutions are adjusted to the same pH range with nitric acid. Chloride concentrations greater 3000 mg/l can be determined after defined dilution of the test sample with distilled water.The following ions only interfere above the indicated concen-trations: > 1000 mg/l Al 3+ , Ca 2+ , Cd 2+ , Ce 4+ , Cu 2+ , K + , Mg 2+ , Mn 2+, Na + , NH 4 + , Ni 2+ , Pb 2+ , Sn 2+ , Zn 2+ , BO 3 û , CO 3 2û CrO 4 2û, NO 2 û , NO 3 û , PO 4 3û , SO 3 2û , SO 4 2û , acetate, citrate, oxalate, tartrate, EDTA > 500 mg/l Fe 2+ , Fe 3+ > 200 mg/l I û ,> 100 mg/l Ag + ,

• Quantofix Chloride, Box Of 100 Strips