This Standard Reference Material (SRM) is intended primarily for use in validation of chemical and instrumental methods of analysis used to determine elements in hard rock mine waste and materials of a similar matrix. It can be used to validate value assignment of in-house reference materials. NIST-2780a is composed of material collected from waste piles of abandoned mine sites in the mountains of central Colorado. A unit of NIST-2780a consists of approximately 50 g of material of which 90 % passes a 150 µm (No. 100) sieve. /// Sample value(s) - please ask for current certificate.
Contents
Analyte
CAS Number
Concentration
Unit
Additional information
Method
Aluminium (Al)
[7429-90-5]
8,43
%
Certified value
Barium (Ba)
[7440-39-3]
0,093
%
Certified value
Calcium (Ca)
[7440-70-2]
0,247
%
Certified value
Iron (Fe)
[7439-89-6]
8,75
%
Certified value
Lead (Pb)
[7439-92-1]
0,665
%
Certified value
Magnesium (Mg)
[7439-95-4]
0,465
%
Certified value
Potassium (K)
[7440-09-7]
3,99
%
Certified value
Silicon (Si)
[7440-21-3]
24,1
%
Certified value
Sodium (Na)
[7440-23-5]
0,108
%
Certified value
Sulfur (S)
[7704-34-9]
8,85
%
Certified value
Titanium (Ti)
[7440-32-6]
0,643
%
Certified value
Zinc (Zn)
[7440-66-6]
0,102
%
Certified value
Antimony (Sb)
[7440-36-0]
18,3
mg/kg
Certified value
Arsenic (As)
[7440-38-2]
65,9
mg/kg
Certified value
Cerium (Ce)
[7440-45-1]
67,7
mg/kg
Certified value
Cesium (Cs)
8,3
mg/kg
Certified value
Chromium (Cr)
[7440-47-3]
205
mg/kg
Certified value
Cobalt (Co)
[7440-48-4]
16,5
mg/kg
Certified value
Copper (Cu)
[7440-50-8]
240
mg/kg
Certified value
Gold (Au)
[7440-57-5]
6,6
mg/kg
Certified value
Lanthanum (La)
[7439-91-0]
34,4
mg/kg
Certified value
Manganese (Mn)
[7439-96-5]
490
mg/kg
Certified value
Molybdenum (Mo)
[7439-98-7]
25
mg/kg
Certified value
Neodymium (Nd)
[7440-00-8]
28,3
mg/kg
Certified value
Nickel (Ni)
[7440-02-0]
95
mg/kg
Certified value
Phosphorus (P)
[7723-14-0]
286
mg/kg
Certified value
Rubidium (Rb)
[7440-17-7]
220
mg/kg
Certified value
Samarium (Sm)
[7440-19-9]
4,7
mg/kg
Certified value
Scandium (Sc)
[7440-20-2]
15,6
mg/kg
Certified value
Silver (Ag)
[7440-22-4]
72,5
mg/kg
Certified value
Strontium (Sr)
[7440-24-6]
121
mg/kg
Certified value
Thorium (Th)
[7440-29-1]
12
mg/kg
Certified value
Uranium (U)
[7440-61-1]
4
mg/kg
Certified value
Vanadium (V)
[7440-62-2]
152
mg/kg
Certified value
Zirconium (Zr)
[7440-67-7]
206
mg/kg
Certified value
Beryllium (Be)
[7440-41-7]
1,1
mg/kg
Reference value
Bismuth (Bi)
[7440-69-9]
45
mg/kg
Reference value
Cadmium (Cd)
[7440-43-9]
4,8
mg/kg
Reference value
Dysprosium (Dy)
[7429-91-6]
3,1
mg/kg
Reference value
Erbium (Er)
[7440-52-0]
2
mg/kg
Reference value
Europium (Eu)
[7440-53-1]
0,9
mg/kg
Reference value
Gallium (Ga)
[7440-55-3]
21
mg/kg
Reference value
Gadolinium (Gd)
[7440-54-2]
3,2
mg/kg
Reference value
Hafnium (Hf)
[7440-58-6]
5,5
mg/kg
Reference value
Holmium (Ho)
[7440-60-0]
0,7
mg/kg
Reference value
Indium (In)
[7440-74-6]
1,65
mg/kg
Reference value
Lithium (Li)
[7439-93-2]
14
mg/kg
Reference value
Lutetium (Lu)
[7439-94-3]
0,33
mg/kg
Reference value
Niobium (Nb)
[7440-03-1]
20
mg/kg
Reference value
Praseodymium (Pr)
[7440-10-0]
8
mg/kg
Reference value
Tantalum (Ta)
[7440-25-7]
1,2
mg/kg
Reference value
Tellurium (Te)
[13494-80-9]
22
mg/kg
Reference value
Terbium (Tb)
[7440-27-9]
0,5
mg/kg
Reference value
Thallium (Tl)
[7440-28-0]
5,5
mg/kg
Reference value
Thulium (Tm)
[7440-30-4]
0,31
mg/kg
Reference value
Tin (Sn)
[7440-31-5]
7,2
mg/kg
Reference value
Tungsten (W)
[7440-33-7]
17,4
mg/kg
Reference value
Yttrium (Y)
[7440-65-5]
18
mg/kg
Reference value
Ytterbium (Yb)
[7440-64-4]
2
mg/kg
Reference value
Carbon (C)
[7440-44-0]
0,19
%
Reference value
Loss on ignition (950°C)
11,1
%
Reference value
Miscellaneous
Certificate of Analysis (specimen)
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