Spectroquant® – Photometric Test System for Water

We offer Spectroquant® system from Merck, boasting over 170 specialized solutions tailored for various applications such as testing drinking water, surface water, process water, municipal or industrial wastewater, and beverages, as well as disinfection control. With over 200 customer-focused applications and support for internal quality control (IQC), including comprehensive AQA for GLP-compliant documentation, you can trust Spectroquant® for reliable and secure measurement results. 

The comprehensive system includes:

The Advantages of Spectroquant®

  • Rapid and simple operation via the barcode system
  • Selection between cell and reagent tests
  • Validated and standard-compliant analysis methods


Merck’s extensive line of Spectroquant® photometers, colorimeters, and accompanying accessories provides tailored measurement solutions for diverse applications. The range spans from convenient pocket-sized devices to sophisticated lab-bench photometers, ensuring suitability for various needs.

Across all the offerings, the hallmark is uncompromising measurement precision coupled with a steadfast commitment to analytical quality assurance (AQA) protocols.

Spectroquant® Photometers and Colorimeters

Spectroquant® Photometers and Colorimeters provide the assurance you require during your analytical tasks. Spectroquant® offers the extensive selection of instruments, ensuring you discover the perfect match for your specific requirements.

Featured Products

Merck Spectroquant® Prove

Spectroquant® Prove

Spectroquant® Move DC Mobile Colorimeter

Spectroquant® Move DC Mobile Colorimeter

Merck Spectroquant® Move DC Mobile Colorimeter for Disinfection Control

Spectroquant® NOVA 60A

Accessories for Spectroquant® Photometers

Spectroquant® Photometers provides a range of helpful accessories to enhance the usability of colorimeters, photometers, and spectrophotometers in the Spectroquant® line. The offerings include software like Multi-Achat II for easy result transmission to PCs, along with cases, PC cables, halogen lamps, measuring cells, and specialized analysis software.


Spectroquant® offers more than 180 test kits with competent solutions for the widest conceivable range of applications. Customers using Spectroquant® test kits with photometers from other manufacturers can easily program new methods into their instruments by following the instructions provided in the respective instrument manuals.

As compliance with national regulations and standards, such as those set by USEPA (U.S. Environmental Protection Agency) and ISO, is crucial for water testing due to its impact on human health and the environment, many Spectroquant® test kits adhere to approved USEPA or ISO standards, ensuring reliable and compliant results for drinking water and wastewater analysis.


Spectroquant® Cell Test Kits

Spectroquant® Cell Test Kits are designed with utmost user-friendliness in mind. Each kit contains all the required reagents conveniently housed within the cells, ensuring simplicity and ease of use. The thoughtful packaging design safeguards the cells against fluctuations, even in challenging environments. The implementation of a barcode system helps to prevent any potential errors, ensuring accurate and reliable results.

Featured Product

COD Cell Test

Designed for wastewater analysis, COD Cell Test ensures accurate measurement of organic contaminants before release. Utilizing advanced spectrophotometry, it guarantees reliable results, crucial for protecting public water sources and the environment.

Spectroquant® Reagent Test Kits

Spectroquant® Reagent Test Kits offer numerous benefits for convenient and accurate testing. With pre-prepared reagent mixtures, users enjoy stability and ease of use in a user-friendly design. These kits provide flexibility with a choice of cell formats tailored to specific measuring ranges. Enjoy the convenience of liquid or powder reagents with extended shelf life of up to three years when stored at room temperature. Barcode identification ensures automatic selection of the correct testing method. Plus, these kits are compatible not only with Merck spectrophotometers but also with photometers from other brands.


Merck’s Spectroquant® system offers start-to-finish quality assurance for secure and reproducible analytical results. Spectroquant® products undergo rigorous in-house testing, complemented by user-required Analytical Quality Assurance (AQA) following good laboratory practices (GLP). We provide comprehensive IQ, OQ, and PQ documentation and offer a complete Spectroquant® AQA concept for internal quality control. Results are marked with “AQA” suffix for GLP compliance. We ensure correct installation (IQ), functional operation (OQ), and thorough performance verification (PQ). The EQA service further enhances result reliability. Additionally, password protection ensures adherence to AQA intervals, allowing refusal of measurements if quality control standards aren’t met.

Diluted Standard Solutions. No Dilution. No Doubts. No Delays. Just Precision.
  • Covering all parameters for Internal Quality Control (IQC) in photometric analysis of wastewater, drinking water and process water.
  • Both, single-parameter and CombiCheck standard solutions available meeting your application needs.
  • Prediluted standard solutions are available in varying concentrations and therefore can be used directly without additional dilution steps.
  • Traceable to standard reference materials (SRM) from the National Institute of Standards and Technology (NIST) or to United States Pharmacopeia (USP).
  • Detailed certificates (COA) available, including batch-specific parameters, exact concentration, expanded measurement uncertainty, and more.
  • Ideal for validating International Norm Methods: ISO, EN, APHA and EPA. Calculate your working tolerance to meet ISO 17025.