Tl Thallium CAS 7440-28-0 CH 3 COOTl Thallium Acetate CAS 563-68-8 Tl 2 CO 3 Thallium Carbonate CAS 6533-73-9 Tl 2 SO 4 Thallium Sulfate CAS 7446-18-6 TlNO 3 Thallium Nitrate CAS 10102-45-1 TlClO 3 Thallium Chlorate CAS 13453-30-0 TlF Thallium Fluoride CAS 7789-27-7 TlCN Thallium Cyanide CAS 13453-34-4 TlBr 3 4H 2 O Thallium Bromide CAS 13701-90-1 Tetrahydrate kpa mg/l LogPow * Tl 204.37 1457 5.65E-10 (25) 2.65E+4(25) 0.23 CH 3 COOTl 263.42 1.96(25) 2.8E+4(25) -0.17 Tl 2 CO 3 468.75 0.77 (25) 5.2E+4(25) -0.86 Tl 2 SO 4 504.83 5.9E-14 (25) 29.9(25) 1.58 TlNO 3 266.39 TlClO 3 287.83 TlF 468.78 TlCN 230.40 430 3.7E-12 (25) 9.55E+4(25) 0.21 826
kpa mg/l LogPow * TlBr 3 4H 2 O 516.16 * http://w-chemdb.nies.go.jp/ LDL05714µg/kg TLD0 5.712mg/kg 100mL ICP 100mL 1M HBr 4--2- MIBK H(TlBr 4 )MIBK ICP 1000g/mL 1000g/mL 4--2-MIBK TORAYPURE LV-10T
1 5 B 2 1% 3 100mL 4 5mL 5070mL 5 5 B 100mL 6 100mL 2mL 7 5 B 15mL MIBK10mL 5 8 9 MIBK 10MIBK 11 0.5mL 10mL 12
Tl 1000g/mL 5% 1g/mL Bi 1000g/mL 1g/mL Tl Bi 5%0.002ng/mL 10ng/mL 13 5ng/mL 0.002ng/mL 10ng/mL 5 1g/mL 1 ICP-MS ICP-MS SPQ9000 1.2kW 10mm 16L/min 1.0L/min 0.83L/min m/z=203, 205 14 Bim/z=209 Tl 1g/mL5%Bi ICP-MS Tl Bi Tl ng/ml ng/ml IDL ICP-MS IDL 15 IDL(ng/mL) (ml) (ml) IDL (ng/ml) 203 Tl 0.00064 100 100 0.00064 205 Tl 0.00033 100 100 0.00033 MDLMQL
16 Tl IDL 5 MDLMQL MDLMQL (ml) (ml) (ng/ml) (ng/ml) 203 Tl 100 100 0.00041 0.00105 205 Tl 100 100 0.00038 0.00097 (ml) (ml) (ng/ml) (ng/ml) 203 Tl 100 10 0.00017 0.00043 205 Tl 100 10 0.00016 0.00041 1 PTFE PFA 2 1% 3 100mL 1mL 4 50mL 2.5mL 5 1% 4mL 6 ICP-MS Tl Tl
1g/mL 0.5mL 100mL 5ng/mL 7 8 MIBK18 18 1M 9 MIBK Tl Tl 100% 10 MIBK MIBK ml 11 MIBK 0.5mL 0.5mL 12 1g/mL 0.05mL 10mL 5ng/mL 13 ICP-MS Tl 14 Tl m/z=203 205
15 IDL 17 3 1 1IDL 203 Tl 205 Tl (ml) 100 100 (ml 100 100 (ng/ml 0.013 0.013 1 0.0127 0.0124 2 0.0126 0.0125 3 0.0124 0.0124 4 0.0123 0.0123 5 0.0126 0.0124 6 0.0123 0.0123 7 0.0123 0.0125 0.0125 0.0124 0.00017 0.00008 IDL(ng/mL) 0.00064 0.00033 IDL(ng/mL) 0.00064 0.00033 CV(%) 1.3 0.7 IDL=t(n-10.05) σ n-1 2
16 MDLMQL 17 3 2MDLMQL 203 Tl 205 Tl (ml) 100 100 (ng) 0.32 0.32 (ng/ml 0.0032 0.0032 (ml 100 100 (ng/ml 0.0032 0.0032 (ng/ml 0.00006 0.00003 1(ng/mL 0.00325 0.00323 2(ng/mL 0.00347 0.00329 3(ng/mL 0.00334 0.00329 4(ng/mL 0.00349 0.00334 5(ng/mL 0.00328 0.00327 6(ng/mL 0.00335 0.00348 7(ng/mL 0.00321 0.00317 0.00334 0.00330 0.00011 0.00010 MDL(ng/mL 0.00041 0.00038 MQL(ng/mL 0.00105 0.00097 CV(%) 3.1 2.9 MDL=t(n-10.05) σ n-1 2 MQL=σ n-1 10
203 Tl 205 Tl (ml) 100 100 (ng) 0.032 0.032 (ng/ml 0.00032 0.00032 (ml 10 10 (ng/ml 0.0032 0.0032 (ng/ml 0.00030 0.00031 1(ng/mL 0.00057 0.00058 2(ng/mL 0.00049 0.00051 3(ng/mL 0.00052 0.00052 4(ng/mL 0.00051 0.00050 5(ng/mL 0.00048 0.00052 6(ng/mL 0.00059 0.00059 7(ng/mL 0.00056 0.00059 0.00053 0.00054 0.00004 0.00004 MDL(ng/mL 0.00017 0.00016 MQL(ng/mL 0.00043 0.00041 CV(%) 8.1 7.6 MDL=t(n-10.05) σ n-1 2 MQL=σ n-1 10
1 1 2Bi5ng/mL
3Tl 0.013ng/mL 3 3 ) (m/z) (ml) (ng) (ng/ml) (%) (%) 203 100 5 ND 205 100 5 ND 203 100 1.2 5 0.0121 101 1.2 205 100 1.2 5 0.0121 101 0.8 203 100 5 0.0040 3.1 205 100 5 0.0041 1.2 203 100 0.8 5 0.0125 104 1.9 205 100 0.8 5 0.0124 103 2.0 203 100 5 0.0056 2.7 205 100 5 0.0055 1.5 203 100 0.65 5 0.0122 101 2.5 205 100 0.65 5 0.0122 101 3.2 Tl MDL 3 MDL 30
4 4 1) 2) (m/z) (ml) (ng) (ng/ml) (%) (%) 203 100 5 0.123 6.2 205 100 5 0.123 6.8 203 100 1.2 5 0.253 108 3.8 205 100 1.2 5 0.251 107 2.7 1Tl MDL 30 2 2 10 Tl 5 5Tl (%) (ng/ml) 1 3 5 10 1 0.5 98 98 97 96 95 0.5 97 98 97 96 95 0.5 102 100 101 99 98 0.5 104 101 101 100 98 0.5 102 100 102 100 101 0.5 104 103 103 101 101 50 102 105 103 103 99 50 106 104 101 104 100 5 1% 3 4 0.004ng/mL 0.006ng/mL 0.012ng/mL 0.012ng/mL 0.01ng/mL
0.00097ng/mL 0.00041 ng/ml 1JIS K 0102 2JIS K 0133 3 4 520-8567 3-3-7 TEL077-533-8624 FAX077-537-8232 E-mailYutaka_Iida@trc.toray.co.jp Takayuki_Ichinose@trc.toray.co.jp
Summary Thallium and water-soluble thallium compounds Analytical methods were developed for the determination of thallium and water-soluble thallium compounds in water by inductively coupled plasma mass spectrometry (ICP-MS). Multiple element simultaneousmeasurement (for freshwater sample): A sample was acidified with nitric acid and heated for decomposition of thallium compounds. After cooling and filtration, bismuth was added as an internal standard and thallium in the solution was analyzed by ICP-MS with internal standard correction. The recovery for standard aqueous solutions containing 0.012 ng/ml of thallium was 101 %. Relative standard deviation was 0.8 %. The quantification limit (MQL) was 0.00097 ng/ml. The recovery of thallium in river water was 103 %. The relative standard deviation was 2.0 %. Single element measurement (for seawater sample): A sample was acidified with nitric acid and heated for decomposition of thallium compounds. After cooling and filtration, bromine water was added, and thallium was extracted with 4-Methyl-2-pentanone (methyl isobutyl ketone :MIBK) as H(TlBr 4 ). The extract was evaporated to dryness and the residue was decomposed with nitric acid and hydrogen peroxide, and thallium was dissolved with nitric acid, and then bismuth was added as an internal standard. Thallium in the solution was analyzed by ICP-MS with internal standard correction. The quantification limit (MQL) was 0.00041 ng/ml. The recovery of thallium in seawater was 107 %The relative standard deviation was 2.7 %. Multiple element simultaneousmeasurement Freshwater Nitric acid 100mL 5mL ICP-MS Single element measurement Heating Constant volume 100mL Filtration IS addition Bi Seawater Nitric acid Heating Filtration 100mL ICP-MS 2mL IS addition Constant volume Bi10mL MIBK decomposition MIBK extraction MIBK 10mL HBr addition 15mL