Web Analytics Made Easy - StatCounter

Sample Zeroing Accessory Packs

Before a photometric instrument can be used to obtain test results, it must be set to zero. A sealed ZERO ampoule is already supplied in CHEMetrics Vacu-vials® test kits for use when samples are colourless and clear, but what about when they are coloured or turbid? CHEMetrics’ new Sample Zeroing Accessory Packs (SZAPs) are designed to help the analyst compensate for potential errors that may occur when samples are either cloudy or coloured and can provide a marked accuracy improvement over the use of the standard Vacu-vials® ZERO ampoule in such scenarios.

Please see the Turbidity Interference article for more information on discoloured water samples and colourimetric water analysis.

A-0503 and A-0504

For the A-0503 and A-0504, fill the sample cup with the samples to be tested. Snap the tip of the self-filling ampoule in the sample, mix and use in place of the supplied ZERO ampoule.

Each Sample Zeroing Accessory Pack contains 30 vacuum-sealed ampoules for sample zeroing and instructions.

A-0025

For the A-0025, fill the test tube with the sample to be tested and use in place of the supplied ZERO ampoule.

Each Accessory Pack contains 10 test tubes for sample zeroing and instructions.

Compatability

See the table below to determine the appropriate Sample Zeroing Accessory Pack to use with your particular CHEMetrics Vacu-vials® kit.

Sample Zeroing Accessory Pack Instructions
Analyte Vacu-vials Test Kit Range (ppm) Sample Zeroing Pack
Ammonia K-1413 0 - 3.00 & 0 - 60.0 (as N) A-0025
Ammonia K-1503 0 - 7.00 (as N) A-0503
Ammonia K-1523 0 - 14.0 (as N) A-0504
Chloride K-2103 0 - 40.0 A-0503*
Chlorine K-2513 0 - 5.00 A-0025
Chromate K-2803 0 - 3.50 A-0503
Copper K-3503 0 - 12.0 A-0503
Cyanide K-3803 0 - 0.400 A-0503*
DEHA K-3903 0 - 2.00 A-0503
Hydrogen Peroxide K-5543 0 - 6.00 A-0503
Iron K-6203 0 - 6.00 A-0503
Iron K-6003 0 - 6.00 A-0503
Manganese K-6503 0 - 30.0 A-0503
Molybdate K-6703 0 - 25.0 (as Mo) A-0503
Nitrate K-6913 0 - 1.50 (as N) A-0025
Nitrate K-6903 0 - 1.50 (as N) N/A
Nitrate K-6923 0 - 7.50 (as N) N/A
Nitrate K-6933 0 - 50 (as NO3) N/A
Nitrite K-7003 0 - 1.00 (as N) A-0025
Oxygen (Dissolved) K-7553 0 - 1.000 A-0503
Oxygen (Dissolved) K-7513 0 - 15.0 A-0503
Ozone K-7433 0 - 0.75 N/A
Ozone K-7423 0 - 5.00 A-0025
Peracetic Acid K-7913 0 - 5.00 A-0025
Phenols K-8003 0 - 8.00 A-0503
Phenols K-8023 0 - 20.0 A-0504
Phosphate K-8513 0 - 8.00 / 5.00 ‡ A-0503
Phosphate K-8503 0 - 80.0 A-0503
Silica K-9003 0 - 10.00 / 4.00 ‡ A-0503
Sulphate K-9203 0 - 100.0 N/A
Sulphide K-9503 0 - 3.00 / 1.00 ‡ A-0503
Sulphide K-9523 0 - 6.00 A-0504
Zinc K-9903 0 - 3.00 A-0503*
Zinc K-9923 0 - 15.0 A-0503*