Spectroquant - Analytical Quality Assurance

Today analytical quality assurance (AQA) is a decisive factor in wastewater analysis. Only quality assurance measures that check your processes from start to finish ensure that your findings ultimately count as secure, reproducible, reliable and recognized analytical results. Our Spectroquant® analysis system and the components that make up our professional AQA concept make your internal quality control (IQC) operations reliable and secure. One major component of the AQA concept is the safety aspect in connection with the use of the Spectroquant® analysis system.

Start-to-finish quality assurance – with EMD!

The AQA measures are documented in the measurement report in GLP-compliant manner. Once each result has passed the quality control check, it is given the “AQA” suffix. This is reliable verification that the instrument or the overall system has been checked. EMD offers you versatile solutions to ensure that your measurement results count as secure and reproducible analytical results. You choose the option:

Checking the instrument with Spectroquant® PhotoCheck (AQA1)

In the AQA1 mode the photometer itself is monitored by means of certified color standards (Spectroquant® PhotoCheck).

Certipur UV/VIS standards

The consistent and correct functioning of our of our UV/VIS spectrometers can be checked using the Certipur® standards. The Certipur® standard solutions can be used to check the following parameters as per Ph. Eur:

• Absorption
• Stray-light profile
• Wavelength accuracy

Operations as per GLP, GMP, USP and DIN 9001 or EN 45001 demand these regular controls.

Checking the entire system with Spectroquant® CombiCheck (AQA2)

In the AQA2 mode the entire system is comprehensively monitored using certified multiparameter standards (Spectroquant® CombiCheck).

The multiparameter standard solutions contained in the various Spectroquant® CombiCheck packs are optimally suited for checking the overall system, from the individual test kit and the measurement instrument itself, all the way to your specific working procedures. These standards can also be directly traced back to NIST primary standards.

AQA-3 Matrix check

Besides testing the overall system, it is also necessary to identify any measurement errors due to possible interferences within the sample. Standard addition (see also Spectroquant® CombiCheck addition solution R-2) or dilution can be used to recognize measurement errors due to matrix effects. Any such interferences can be analyzed on the basis of the recovery rates and correspondingly rectified by taking appropriate countermeasures, such as e.g. pre-treating the sample accordingly.

In the Spectroquant® Pharo spectrometers, this function is also supported by the instrument itself. (AQA-3 mark)