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1.3.1 to take 20 ml color comparison tube, add 10.0 ml of the soaking water immersion test by adding hydrochloric acid 1.0 ml, adding 1.0 ml thiourea solution mix, tested.
1 Materials and Reagents
1.3.2 In another 20 ml colorimetric tube, 9, were added to the standard use of antimony solution 0.00 ml, 0.10 ml, 0.30 ml, 0.50 ml, 1.00 ml, 3.00 ml, 5.00 ml, 7.00 ml, 9.00 ml, diluted with water to 10.00 ml, by adding hydrochloric acid to each tube 1.0 ml, 1.0 ml thiourea solution,christian louboutin france, mix, tested.
Hydride generation - atomic fluorescence determination of antimony in aquatic based


Of: Wei-Hong Xu , Mill Fang, Shen Qingguang
PMT voltage: 320 V, the temperature in the atomic instrument; HCL main cathode current: 120 mA, analysis of signal peak area; HCL auxiliary cathode current: 0 mA, the reading time of 12.0 s; carrier gas flow rate 600 ml / min, extended reading time 1.0 s; injection volume 1.0 ml, way off order flow process flow; atomic instrument height 7 mm, pump speed 70 r / min; stop the pump time 4 s,Beats By Dre Studio, the pump stops time 5 s; injection pump speed of 100 r / min , injection time 19 s.
1.2.2 Special antimony hollow cathode lamp.
1.1 Reagents
In drinking water equipment, hygiene and safety evaluation of protective material in the immersion test specifications in the health requirements for additional projects to increase the amount of antimony ≤ 0.0005 mg / L. In order to address the lack of hydride generation atomic absorption device problem, we use test instrument conditions, the detection limit, linear range, precision and accuracy were studied,sandales christian louboutin, using the measured aquatic immersion test set antimony soak less interference, high sensitivity, good accuracy, can meet the water health standards
1.2 devices
1.2.1 AF610A atomic fluorescence spectrometer.
Hydrochloride (ρ20 = 1.19 g / ml) excellent pure; excellent pure solid potassium hydroxide; solid potassium borohydride excellent pure; excellent pure solid thiourea; antimony standard stock solution (ρ (Sb) = 100 mg / L),christian louboutin pas cher, GSB0712772000 Institute of Environmental Protection Administration of standard sample production; potassium borohydride solution (10 g / L): Weigh 2 g potassium hydroxide, 10 g of potassium borohydride in 1 000 ml volumetric flask plus water Dilute solution mix; thiourea solution (100 g / L): Weigh 100 g of thiourea dissolved in water diluted to 1 000 ml; hydrochloric acid solution (1 +11): Take 50 ml hydrochloric acid slowly add 550 ml water in the mix; antimony standard use liquid [ρ (Sb) = 0.01 μg / ml]: lessons antimony standard stock solution 1.00 ml in 100 ml flask, shaken with water diluted to the scale, the solution [ρ (Sb) = 1 μg / ml]. Then draw [ρ (Sb) = 1 μg / ml] 1.00ml in 100 ml flask, shaken with water diluted to scale, the solution [ρ (Sb) = 0.01 μg / ml].
1.3 Analysis
1.2.3 argon gas cylinders.
1.2.4 instrument parameters

Key words hydride generation - atomic fluorescence spectrometry

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