Lachat Method: Ammonia 10-107-06-1-X

Dokument-ID

Dokument-ID ME133

Veröffentlichungsdatum

Veröffentlichungsdatum 18.01.2022
Titel
Lachat Method: Ammonia 10-107-06-1-X
Zusammenfassung
Method # Range MDL Units Matrix Rev. Date
10-107-06-1-X 0.25-20.0 0.007 mg/L NH3-N Waters 17-Sep-09
Verfahrens-Dokument
Samples are pre-distilled using the Lachat MICRODIST apparatus. Ammonia is then determined on the distillate. This method is based on the Berthelot reaction where ammonia reacts with alkaline phenol and sodium hypochlorite to form indophenol blue. Sodium nitroprusside (nitroferricyanide) is added to enhance sensitivity. The absorbance of the reaction product measured at 630 nm is directly proportional to the original ammonia concentration.

*Please note diagrams are not included.  Please contact Lachat Technical Support or reach out to your Lachat sales representative for a version containing the method diagram.
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