使用LC/MS进行含有盐酸盐、溴酸盐的阴离子及卤乙酸的同时分析 (JJ-50 2D)
时间:2024-12-04 阅读:59
Sample : 5 μL
10 μg/L each for ClO3-, BrO3-
100 μg/L each for MCAA, DCAA, TCAA
in Tap water containing sodium thiosulfate 0.3 w/v%
1. ClO4-, Perchlorate
2. TCAA, Trichloroacetic acid
3. ClO3-, Chlorate
4. DCAA, Dichloroacetic acid
5. NO3-, Nitrate
6. MCAA, Chloroacetic acid
7. BrO3-, Bromate
8. Br-, Bromide
9. Cl-, Chloride
10. SO42-, Sulfate
11. S2O32-, Thiosulfate
Sample: 5 μL
Tap water containing
sodium thiosulfate 0.3 w/v%
1. ClO4-, Perchlorate
2. TCAA, Trichloroacetic acid
3. ClO3-, Chlorate
4. DCAA, Dichloroacetic acid
5. NO3-, Nitrate
6. MCAA, Chloroacetic acid
7. BrO3-, Bromate
8. Br-, Bromide
9. Cl-, Chloride
10. SO42-, Sulfate
11. S2O32-, Thiosulfate
Column : Shodex RSpak JJ-50 2D (2.0 mm I.D. x 150 mm)
Eluent : (A); 200 mM HCOONH4 aq./(B); CH3CN
Linear gradient (High pressure);
85 % B (0 min) → 85 % B (8 min) → 50 % B (9 min) → 50 % B (20 min)
Flow rate : 0.3 mL/min
Detector : ESI-MS/MS (MRM Negative) for ClO3-, BrO3-
ESI-MS (SIM Negative) for ClO4-, TCAA, DCAA, NO3-,
MCAA, Br-, Cl-, SO42-, S2O32-
Column temp. : 50 ℃