This product is not an ammonium standard, but a nitrogen standard (in the form of ammonium). If written, 'NH4+ standard as N', that would imply that the product is an ammonium standard, which this is not; it is an ammonium *nitrogen* standard.
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| Größe/SKU | Verfügbarkeit | Preis |
|---|---|---|
100 mL | Warenkorb auf Verfügbarkeit prüfen | € 44,30 |
Über diesen Artikel
Quality Segment
product line
TraceCERT®
grade
certified reference material, TraceCERT®
concentration
1000 mg/L N as NH4+ in water (nominal concentration)
technique(s)
chromatography: suitable, ion chromatography: suitable
application(s)
environmental
food and beverages
format
single component solution
General description
Der zertifizierte Inhalt sowie Messunsicherheiten und Verfallsdatum können dem Zertifikat entnommen werden.
Ihr Zertifikat können Sie unter http://www.sigma-aldrich.com herunterladen.
Analysis Note
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Dieser Artikel | |||
|---|---|---|---|
| description 1000 mg/L N as NH4+ in water (nominal concentration), TraceCERT® | description TraceCERT®, 1000 mg/L NH4+ in water (nominal concentration) | description certified reference material, 1000 mg/L N as nitrate in water (nominal concentration), TraceCERT® | description certified reference material, 1000 mg/L N as nitrite in water (pH ~11 nominal concentration), TraceCERT® |
| technique(s) chromatography: suitable, ion chromatography: suitable | technique(s) chromatography: suitable, ion chromatography: suitable | technique(s) ion chromatography: suitable | technique(s) ion chromatography: suitable |
| application(s) environmental | application(s) environmental | application(s) environmental | application(s) environmental |
| format single component solution | format single component solution | format single component solution | format single component solution |
| Quality Level 300 | Quality Level 300 | Quality Level 300 | Quality Level 300 |
| grade TraceCERT®, certified reference material | grade certified reference material, TraceCERT® | grade TraceCERT®, certified reference material | grade TraceCERT®, certified reference material |
| concentration 1000 mg/L N as NH4+ in water (nominal concentration) | concentration 1000 mg/L NH4+ in water (nominal concentration) | concentration 1000 mg/L N as nitrate in water (nominal concentration) | concentration 1000 mg/L N as nitrite in water (pH ~11 nominal concentration) |
Lagerklasse
12 - Non Combustible Liquids
Was ist los?
nwg
Flammpunkt (°F)
Not applicable
Flammpunkt (°C)
Not applicable
Zulassungslistungen
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12125-02-9
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The way this is named is super confusing. Normally, I would see NH4+ standard written "as N" meaning that only the nitrogen is considered toward the concentration. This seems to indicate that the NH4+ molecular weight is used to calculate the conc!?!
1 answer-
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