The Interference Check Standards are used to set or confirm that the correct background correction intervals have been set for sequential ICP spectrometers and that the proper inter-element correction factors are set for simultaneous ICP spectrometers.

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This multi-component standard set contains 4 solutions.

• Solution 1 is a 125 mL bottle which contains 20,000 µg/mL (20,000 ppm) of Potassium; 1,000 µg/mL (1,000 ppm) of Arsenic, Lead, Thallium; 500 µg/mL (500 ppm) of Barium, Cadmium, Chromium, Cobalt, Copper, Nickel, Silver, Vanadium, Zinc; 200 µg/mL (200 ppm) of Manganese; and 100 µg/mL (100 ppm) of Beryllium, Mercury in 5% HNO3. This is available individually as part number 04568-23.

• Solution 2 is a 125 mL bottle which contains 6,000 µg/mL (6,000 ppm) of Calcium; 5,000 µg/mL 5,000 ppm) of Iron; 3,000 µg/mL (3,000 ppm) of Magnesium; 1,200 µg/mL (1,200 ppm) of Aluminum; and 1,000 µg/mL (1,000 ppm) of Sodium in 5% HNO3. This is available individually as part number 04568-21.

• Solution 3 is a 125 mL bottle which contains 100 µg/mL (100 ppm) of Mercury in 5% HNO3. This is available individually as part number 04503-59.

• Solution 4 is a 125 mL bottle which contains 1,000 µg/mL (1,000 ppm) of Antimony in H2O/0.6% Tartaric Acid/tr. HNO3. This is available individually as part number 04503-03.

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