Specifications HI96780-25 Range 0.00 to 6.00 mg/L (TRITON X-100) Resolution 0.01 mg/L Accuracy ±0.10 mg/L* ±5% of reading at 25 °C Wavelength 610 nm Cuvette Type 13 mm diameter Method TBPE Method Method ID #094 # of Vials 24 HI96780-25 Surfactants, Non Ionic Pre-dosed Reagent Set 13 mm Vial HI96780-25 is a kit of pre-dosed reagents in vials for the determination of Non Ionic Surfactants. There are vials for 25 tests to be used with Hanna’s HI801 and HI802 spectrophotometers. These high-quality reagents are manufactured in our state-ofthe-art facility and are clearly marked with lot number and expiration date for traceability. The method is TBE Method, which maximum accuracy even at high values. The procedure involves the addition of a representative sample volume (3 mL) and the use of 13 mm (internal diameter) cuvettes, with a longer optical path than many other vials on the market. This ensures accurate absorbance measurements and greater repeatability of results. Furthermore, the 13 mm vial has more headspace than other kinds of vial and this implies two great benets: optimal sample extraction and quick dissolution of any emulsions. Signicance and Use Surfactants are one of many dierent compounds that make up a detergent. Nonionic surfactants do not bear an electrical charge and are often used together with anionic surfactants. Nonionic surfactants account for nearly 50% of surfactant production. Nonionic surfactants are more surface active and better emulsiers than anionic surfactants at similar concentrations. They are less soluble than anionic surfactants in hot water and produce less foam. They are more e´cient in removing oily and organic dirt. Nonionics are used in fabric washing detergents, hard surface cleaners and in many industrial processes such as emulsion polymerization and agrochemical formulations. Application Water, wastewater, surface water, formulations, degreasing baths, wash solutions, process analysis. Method TBPE Method: Nonionic surfactants (ethoxylates with 3 to 20 ether bridges) react with the indicator TBPE to form a green complex, which is then extracted in dichloromethane and photometrically evaluated. This method has a strong temperature and pH dependence. *When testing using a previously stored zero, accuracy could be affected. 4 Reasons to Choose Hanna 1. Thanks to the 16 mm diameter vials, the emulsion is dissolved quickly 2. Optimal sample extraction (16mm vial has more headspace) 3. Representative sample: 3 mL 4. Maximum accuracy even at high values Procedure guides on inside lid 11 COD and Vials 11.36 | www.hannainst.com introduction
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