Quaternary Ammonium Compounds (QAC)
-Direct Binary Complex Method (Method 8337)
The reagents buffer the sample to an acidic pH and include a masking agent to remove potential interferences. The indicator reacts with quaternary ammonium compounds in the sample and forms a pale pink to vivid purple color. This test is applicable to monitor quaternary ammonium compounds in swimming pools and cooling towers. The measurement wavelength is 575 nm.
-Hach Company/Hach Lange GmbH 03/2014, Edition 8
|Hold Time||28 days|
|Preservation||To preserve samples for later analysis, adjust the sample pH to less than 2 with concentrated sulfuric acid (approximately 2 mL per liter). No acid addition is necessary if the sample is tested immediately. Keep the preserved samples at or below 6 °C.|
|Sample Volume||250 mL glass container|
|Collection Method||Collect samples in glass bottles that have been rinsed several times with sample. Do not use plastic containers, which can adsorb quaternary ammonium compounds.|
|Method Refernce||HACH Method 8337|
|Quaternary Ammonium Compounds|
*Please contact our project management team for more information about reporting limits and other specific project needs.
Request A Quote
If you would like us to provide a quote for laboratory analysis, just provide us with information about how we can help you with your project.