GBW(E)100717 海帶粉成分分析標(biāo)準(zhǔn)物質(zhì)
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|
標(biāo)準(zhǔn)值 |
不確定度 |
單位 |
CAS |
備注 |
|
K |
2.8 |
0.2 |
質(zhì)量分?jǐn)?shù)(×10-2) |
7440/9/7 |
|
|
Na |
4.9 |
0.2 |
質(zhì)量分?jǐn)?shù)(×10-2) |
7440-23-5 |
|
|
Ca |
1.4 |
0.2 |
質(zhì)量分?jǐn)?shù)(×10-2) |
7440-70-2 |
|
|
Mg |
0.56 |
0.05 |
質(zhì)量分?jǐn)?shù)(×10-2) |
7439-95-4 |
|
|
Fe |
0.024 |
0.002 |
質(zhì)量分?jǐn)?shù)(×10-2) |
7439-89-6 |
|
|
Zn |
0.0018 |
0.0003 |
質(zhì)量分?jǐn)?shù)(×10-2) |
7440-66-6 |
|
|
Mn |
0.0041 |
0.0004 |
質(zhì)量分?jǐn)?shù)(×10-2) |
7439-96-5 |
|
|
Al |
0.025 |
0.004 |
質(zhì)量分?jǐn)?shù)(×10-2) |
7429-90-5 |
|
|
Cr |
2.1 |
0.2 |
質(zhì)量分?jǐn)?shù)(×10-6) |
7440-47-3 |
|
|
As |
22 |
3 |
質(zhì)量分?jǐn)?shù)(×10-6) |
7440-38-2 |
|
|
Cd |
0.63 |
0.03 |
質(zhì)量分?jǐn)?shù)(×10-6) |
7440-43-9 |
|
|
Hg |
0.044 |
0.002 |
質(zhì)量分?jǐn)?shù)(×10-6) |
7439-97-6 |
|
|
Pb |
1.4 |
0.1 |
質(zhì)量分?jǐn)?shù)(×10-6) |
7439-92-1 |
|
|
Cu |
2.3 |
0.2 |
質(zhì)量分?jǐn)?shù)(×10-6) |
7440-50-8 |
|
|
Se |
0.07 |
0.01 |
質(zhì)量分?jǐn)?shù)(×10-6) |
7782-49-2 |
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