产品名称
CombiCheck 70, photometric, Spectroquant®
product line
Spectroquant®
analyte functional class(es)
chemical oxygen demand (COD)
specific analyte(s)
ammonium, nitrogen
technique(s)
photometry: suitable
application(s)
agriculture
biotechnology/fermenter
disposal drainage water
drinking water
food testing
ground and surface water
seawater
wastewater
detection method
photometric (ammonium, COD and nitrogen)
format
multi-component solution
storage temp.
15-25°C
Quality Level
Analysis Note
Standard Solution Reagent R-1:
Ammonium: 50.0 ± 5.0 mg/L NH4-N
COD: 5000 ± 400 mg/L COD
Nitrogen: 50 ± 7 mg/L N
Addition Solution Reagent R-2 (Spike sample):
Ammonium: 20.0 ± 2.0 mg/L NH4-N
COD: 2000 ± 200 mg/L COD
Nitrogen: 20 ± 6 mg/L N
Ammonium: 50.0 ± 5.0 mg/L NH4-N
COD: 5000 ± 400 mg/L COD
Nitrogen: 50 ± 7 mg/L N
Addition Solution Reagent R-2 (Spike sample):
Ammonium: 20.0 ± 2.0 mg/L NH4-N
COD: 2000 ± 200 mg/L COD
Nitrogen: 20 ± 6 mg/L N
Application
CombiCheck 70 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
General description
This Spectroquant® CombiCheck 70 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.
Legal Information
SPECTROQUANT is a registered trademark of Merck KGaA, Darmstadt, Germany
存储类别
12 - Non Combustible Liquids
wgk
WGK 2
flash_point_f
Not applicable
flash_point_c
Not applicable
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