海水—铅的测定—无火焰原子吸收光谱法.PDF

FHZDZHS0009 F-HZ-DZ-HS-0009 1 0.03 g/L 2 pH45 APDC DDTC MIBK -283.3nm 3 3.1 100mL/h 3.2 1.42g/mL 3.3 1+1 3.4 1+99 3.5 c NH ·H O =6mol/L 3 2 3.6 CH3COOH 1.05g/mL 3.7 MIBK -240mLMIBK C H O 60mL C H 6 12 6 12 3mL1.42g/mL 0.5min 3 pH67 3.8 APDC - DDTC APDC C H N S DDTC C H NS Na 1.0g 100mL 5 12 2 2 5 10 2 MIBK-3 10mL 1 3.9 100mL 1.05g/mL 6mol/L pH52mL APDC-DDTC 10mL MIBK-1min 3 3.10 3.10.1 0.5000g 99.99% 10mL 1+1500mL 1.00mL 1.00mg 3.10.2 10.0mL 1.00mg/mL 100mL 1+99 1.00mL 100 g 3.10.3 1.00mL 100 g/mL 100mL 1+99 1.00mL 1.00 g 1 3.11 1g/L0.1g 100mL 20+80 3.12 0.45 m 1.42g/mL pH2 4 4.1 4.2 4.3 4.4 1+3APDC-DDTC 5 5.1 0.45 m 1.42g/mL pH 12 GB 17378.3 0.5mol/L 12h 5.2 1%1 V V V 1 3 1 V +V 1 2 1 VmL V1mL V mL 2 V mL 3 5.3 200mL 6 6.1 6.1.1 200mL 0.45 m 6 025 5075100200 L 1.00 g/mL 00.1250.2500.3750.5001.00 g/L 6.1.2 1 6mol/L pH5.5 1mL pH45 2mL APDC-DDTC 15mL MIBK- 2min 6.1.3 0.5mL APDC-DDTC 10mL MIBK- 0.5min 6.1.4 5mL 6.1.5 0.20mL 1.42g/mL 1min 4.80mL 1min 2 10mL 20.0 L Ai 1 PE-703 1 PE-703 TEMP KAMP HOLP mL/min t S S s 100 5 10