The method of spectrophotometric determination of cyanide quality verification report parameters: Determination of detecting water quality standards cyanides: HJ484-2009
Equipment: intelligent integration of Distiller Equipment Type: ST106-3RW
Instrument conditions: Intelligent Integration of Distillation apparatus: 500W heating power (full boiling mode); a set amount of 85 mL; time setting 60min.
Experiment time: November 12, 2016 a method of verification steps
1.1 Reagent preparation: Press HJ484-2009 preparation.
1.2 Standard curve drawing: HJ484-2009 drawn to a predetermined procedure.
1.3 Precision Experiment: water cyanuric standard substance component analysis (standard substance for the production units China Institute of Metrology, standard substance for the batch number 16098) preparation of high concentration, medium and low water samples gradients, six replicates of each times, to calculate the relative standard deviation of six samples for each concentration.
1.4 Accuracy test: Total Cyanide water standard sample (standard sample of production units MEP Institute standard sample, standard substance lot number 202260) were tested. Carefully open the ampoule prior to use, dried with a clean pipette 10mL ampules from exact amount of 10mL of concentrated sample to 1000mL volumetric flask, with 0.1% sodium hydroxide solution diluted to volume used immediately after mixing. After dilution of the standard sample solutions were taken 100mL formulated into six parallel samples, experiments were conducted in accordance with the experimental procedure HJ484-2009. Calculate the standard sample concentration, and determines whether the error allowable range. 484-2009) testing requirements.