IAEA原子能机构同位素标样，IAEA-N-1

IAEA-N-1 , Ammonium Sulfate

 

Unit Size: 0.5g

IAEA-N-1 is a relatively coarse grained. salt of ammonium sulfate [(NH4)2 SO4] prepared by E. Salati, CENA (Centro de Energia Nuclear na Agricultura), Brazil, in the period of 1978 to 1983 [1, 2]. Its δ15N value is determined using data from several interlaboratory comparisons ａnd assessments [2-5].

Analyte	Value	Unit	SD	R/I/C
δ15N	+0.4	‰air N2	0.2	C

 

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IAEA-N-1	Ammonium Sulfate	0.4g	15N=0.4‰air N2
IAEA-N-2	Ammonium Sulfate	0.4g	15N=20.3‰air N2
IAEA-NO-3	Potassium Nitrate	0.5g	15N=4.7‰air N2  18O=25.6‰VSMOW

 

USGS32	Potassium Nitrate	0.5g	15N=180‰air N2  18O=25.7‰VSMOW
USGS34	Potassium Nitrate	0.5g	15N=-1.8‰air N2  18O=-27.9‰VSMOW
USGS35	Sodium Nitrate	0.5g	15N=2.7‰air N2  18O=57.5‰VSMOW
USGS25	Ammonium Sulfate	0.5g	15N=-30.4‰air N2
USGS26	Ammonium Sulfate	0.5g	15N=53.7‰air N2

 

VSMOW

Vienna Standard Mean Ocean Water

20ml

2H=0‰ 18O=0 ‰

 

SLAP2

Water Standard Light Antarctic Precipitation 2

20ml

2H=-427.5‰ 18O=-55.5‰

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