水质氨氮的测定气相分子吸收光谱法

HJHJ/T1952005WaterqualityDeterminationofAmmoniaNitrogenByGasphasemolecularabsorptionspectrometry2005-11-092006-01-01IHJ/T1952005112131415162728292103113IIHJ/T195200520051192006111HJ/T195200510.020mg/L0.080mg/L100mg/L2GB74798733.142%3%050g50.5S/cm5.1pH2100ml5.2C(HCl)=6mol/L5.3C(HCl)=4.5mol/L5.45.540%200gNaOH1000ml700ml500ml5.61.25gKBrO310gKBr500mL5.72.0ml5.6100ml6.0ml5.25min100ml5.5,182HJ/T19520055.8(Mg(ClO4)2)8105.90.500mg/ml1051104h(NaNO2)2.463g1000ml5.1020.00g/ml5.966.16.1.16.1.2(Zn)6.1.350ml6.1.450250l6.1.5300ml05ml6.1.61250ml35.8PVC6.1.16.235mA0.5L/min213.9nm100%117%1237pH22524h81ml5.20.2ml5.41520ml23minNO2-SO32-I-S2O32-SCN-GB747987499.1550g50ml6.1.31ml5.20.2ml3HJ/T19520055.41520ml23min30ml15ml5.71820min9.25ml9.35.106.1.4050100150200250l5.102ml6.1.53ml5.30.5ml5.4µg9.42.00ml9.310mgm0gVml1111.11.08mg/L0.06mg/L1.9%2.5%0.672.31mg/L(n=6)1.4%2.7%11.21.08mg/L0.06mg/L1.06mg/L1.8%0.143.83g0.102.00g93.0%105%()502/0×−=VmmLmg