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Ammonium dihydrogen phosphate matrix modifier solution

20 g/l NH4H2PO4 (99,999 %) in 1 % HNO3
Icon_EVE-EUD Please consider that this product might be liable to some legal sanctions as for example to obtain an end user declaration or the prohibition of some applications. For details please do contact your counterpart in our sales department!
Examples of effect: Damage metals and burn body tissues; may cause serious eye damage. Safety: Avoid contact; wear safety spectacles and gloves. In the event of contact with eyes and skin, rinse with water.
i may be corrosive to metals, causes skin irritation, causes serious eye irritation
i wear protective gloves/protective clothing/eye protection/face protection
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Ammonium dihydrogene phosphate matrix modifier solution, Phosphate matrix modifier
Density (D) ~1 g/cm³
Boiling point (bp) ~100 °C
Melting point (mp) ~0 °C
UN-Nr. 3264

For graphite furnace AAS

€107.40/Pack Qty. 

excl. VAT. | 50 ml per Pack Qty.

Art. No. 5150.1

Ready for dispatch in 3-4 weeks
from 6 Pack Qty. €102.03/Pack Qty.
from 24 Pack Qty. €96.66/Pack Qty.

Product details

Ammonium dihydrogen phosphate matrix modifier solution 20 g/l NH4H2PO4 (99,999 %) in 1 % HNO3

Technical Information
Concentration 20 g/l 
Matrix 1 % HNO3 
Ammonium dihydrogen phosphate matrix modifier solution
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Art. No. Concentration Pack Qty. Pack. Price Quantity
5150.1 20 g/l 50 ml HDPE


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Downloads / MSDS

General information

ROTI®Star Standards for AAS and ICP

Carl ROTH has an extensive range of products which meets the highest standards of quality in the field of element standards and ion standards. The solutions and mixtures are made using materials of the highest purity, and therefore meet the requirements for instrumental analysis by AAS and ICP. All solutions are certified and can be traced to NIST standard reference materials. Solutions are produced according to ISO 17034 in an accredited environment. The solutions are tested in a laboratory accredited to ISO/IEC 17025 and supplied with a detailed, batch-specific certificate of analysis.

We are offering you our ROTI®Star multi-element standard solutions as custom-made solutions which are manufactured with your special requirement.
You will find the form for your customised solution at www.carlroth.com

Matrix Modifer Solutions for Graphite Furnace AAS

Matrix modifier solutions by Carl ROTH are made from high purity starting materials (≥99,999 %) and delivered with a detailed batch specific certificate of analysis. The solutions can be used either diluted or as mixtures, and are suitable for eliminating matrix effects in graphite furnace AAS.


  • Up to 70 measured trace impurities in ppm range and lower
  • Guaranteed accuracy: ±1 %
  • Container size: 50 ml

Certificates of Analysis

You can search for and download your certificate of analysis for the selected product here. Please provide your batch number.
The following analysis certificates have been found:

Type analysis

c (NH4H2PO4) in 1 % HNO320 g/l ±1 %