Recommended Products
specific analyte(s)
cadmium, copper, iron, manganese
Quality Level
technique(s)
photometry: suitable
format
multi-component solution
storage temp.
20-25°C
General description
This Spectroquant® CombiCheck 90 is a high-quality laboratory solution used for internal quality control and method-controlling purposes.
These Spectroquant® standard solutions perfectly complement our ready-to-use test kits and photometers within the Spectroquant® portfolio and are ideal for validating international norm methods described in e.g., ISO, EN, APHA, and EPA.
Please visit the Reference Material Quality Grade website to find a comprehensive overview of our different grades of standards.
These Spectroquant® standard solutions perfectly complement our ready-to-use test kits and photometers within the Spectroquant® portfolio and are ideal for validating international norm methods described in e.g., ISO, EN, APHA, and EPA.
Please visit the Reference Material Quality Grade website to find a comprehensive overview of our different grades of standards.
Application
CombiCheck 90 can be used to check the photometric measurement system (reagents, measurement device, handling) and the mode of working.
Features and Benefits
- Manufactured and tested in DIN EN ISO 9001:2008 accredited laboratory
- The solution is pre-diluted to a concentration that falls into the range of our Spectroquant® test kits. This eliminates the need for dilution prior to analysis and hence avoids a common source of error
- Ready-to-use diluted reference materials (RMs) along with expanded measurement uncertainty ensure absolute precision
- Accompanied with a certificate of analysis (COA) detailing the certified values, including uncertainty and expiry date
- Directly traceable to standard reference materials (SRM) from the National Institute of Standards and Technology (NIST) or to United States Pharmacopeia (USP)
- Reliable and reproducible results
Analysis Note
Standard Solution Reagent R-1:
Cadmium: 0.250 ± 0.030 mg/L Cd
Iron: 1.00 ± 0.15 mg/L Fe
Copper: 2.00 ± 0.20 mg/L Cu
Manganese: 1.000 ± 0.15 mg/L Mn
Addition Solution Reagent R-2 (Spike sample):
Cadmium: 0.200 ± 0.030 mg/L Cd
Iron: 3.00 ± 0.30 mg/L Fe
Copper: 3.00 ± 0.30 mg/L Cu
Manganese: 1.000 ± 0.15 mg/L Mn
Cadmium: 0.250 ± 0.030 mg/L Cd
Iron: 1.00 ± 0.15 mg/L Fe
Copper: 2.00 ± 0.20 mg/L Cu
Manganese: 1.000 ± 0.15 mg/L Mn
Addition Solution Reagent R-2 (Spike sample):
Cadmium: 0.200 ± 0.030 mg/L Cd
Iron: 3.00 ± 0.30 mg/L Fe
Copper: 3.00 ± 0.30 mg/L Cu
Manganese: 1.000 ± 0.15 mg/L Mn
Legal Information
SPECTROQUANT is a registered trademark of Merck KGaA, Darmstadt, Germany
Signal Word
Warning
Hazard Statements
Precautionary Statements
Hazard Classifications
Eye Irrit. 2 - Met. Corr. 1 - Skin Irrit. 2
Storage Class Code
8A - Combustible, corrosive hazardous materials
WGK
WGK 2
Certificates of Analysis (COA)
Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.
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