Hach’s RTC (Real Time Control) solutions are complete off-the-shelf systems that adjust treatment processes in real time, keeping your facility compliant while reducing treatment costs. Controlling your process has never been so simple.
How temperature affects your ammonium measurements.
Temperature influences the volume of liquids and the speed of chemical reactions. This way air and sample temperature can affect your analysis making results too high or too low.
The image below shows an example:
The typical effect of temperature when determining ammonium using the salicylate method.
Deviation from correct measurement result depending on the temperature of reagents, sample and/or environment.
10°C: fresh from refrigerator
30°C: summer heat in measuring room without air conditioning
Keeping an eye on temperatures and sticking to the correct temperatures improves the accuracy of your measurement results.
Read on to find out how to get the right results every time!
What you can do to improve the quality of your results:
Allow samples and reagents coming out of the fridge to warm up before being used.
Do not expose samples and reagents to direct sunlight.
Do not store samples and reagents close to the radiator.
Use a thermostat if required to achieve the correct temperature.
Observe the notes in the user instructions regarding temperatures and reaction times.
Check your analysis on a regular basis with a spiking solution and a standard solution.
Choose the optimum measuring range for your sample, thereby eliminating potential errors by dilution.
The new lab catalogue offers a comprehensive overview:
- Photometric tests including accessories for quality assurance and sample preparation
- Photometers ranging from portable instruments to UV-VIS Spectrophotometers and lab robot
- Portable turbidimeter
- Portable and benchtop meters for pH, DO, conductivity, ORP
- Buffer and standard solutions Request your personal copy now by sending back the response form!
Several components must come together in order to ensure results you can trust. This document contains valuable AQA guidelines.
Photometric cuvette tests with measuring ranges which fit your application
Safe – Maximum safety for users, thanks to the closed cuvette system and low amounts of reagents. Complete labelling of the individual cuvettes, including barcode label for automatic recognition in the photometer.
Easy – Convenient and error-free dosing of the reagents without pipetting and reagent contact, thanks to DOSICAP and DOSICAP ZIP: cuvette caps containing an exactly pre-dispensed amount of freeze dried reagent.
Approved – HACH LANGE cuvette tests are officially approved for legally required consent limits. With the help of standard solutions and round-robin test solutions, they provide the assurance you need.
Versatile – 50 parameters and more than 100 measuring ranges for all applications in water analysis.
Validating the accuracy of your pipettes on a regular basis is essential for regulatory compliance. The LCA722 Pipette Validation Kit provides a reliable method to perform this check even without a lab scale.
Easy to use and evaluate with your photometer
Reliable detection of inaccuracies
For every onsite demonstration of a spectrophotometer booked in July 2014, you will receive 1 free packet of LCA722 Pipette Validation Kit.
Demos must be booked by July 31, 2014. Offer Code H1427L must be mentioned at time of booking. The LCA722 will be handed over during the demonstration. Offer Code H1427L must be mentioned at time of purchase. Not to be combined with any other discounts or offers.