Detection Capabilities for ICP-MS (EPA Method 1638)

Metal	MDL ppb	LOQ ppb	ML ppb	Recommended Analytical m/z
Aluminum Antimony Arsenic Barium Beryllium Cadmium Chromium Cobalt Copper Lead Manganese Molybdenum Nickel Selenium Silver Thallium Thorium Uranium Vanadium Zinc	0.1 0.01 0.1 0.01 0.01 0.01 0.02 0.005 0.01 0.005 0.01 0.008 0.09 0.3 0.009 0.004 0.01 0.004 0.01 0.04	0.3 0.03 0.4 0.03 0.04 0.03 0.06 0.017 0.04 0.015 0.03 0.025 0.30 1.1 0.028 0.012 0.03 0.014 0.03 0.1	0.5 0.05 0.5 0.05 0.05 0.05 0.05 0.02 0.05 0.02 0.05 0.02 0.2 1.0 0.02 0.01 0.05 0.01 0.05 0.1	27 121 75 138 9 114 52 59 63 206, 207, 208 55 98 60 82 107 205 232 238 51 66

1. Method Detection Limit as determined by 40 CFR Part 136, Appendix B.

2. Minimum Level (ML) calculated by multiplying laboratory-determined MDL by 3.18 and rounding result to nearest multiple of 1, 2, 5, 10, etc. in accordance with procedures used by EAD and described in the EPA Draft National Guidance for the Permitting, Monitoring, and Enforcement of Water Quality-Based Effluent Limitations Set Below Analytical Detection/Quantitation Levels, March 22, 1994.