SUMMARY
The application note summarizes the digestion of AgroMAT Compost CP-1, a Matrix Reference Material using ColdBlock Digestion CB15S Technology.
| Instrument: | ColdBlock CB15S sample digester, chiller, ICP-OES, ICP-MS |
| Published: | August 2022 |
| Digestion Time: | 30 Minutes |
| Acid Used: | HNO3 & HCl |
| Average ColdBlock Recovery vs. CRM: |
|
CP-1 after digestion completed
AgroMAT Compost CP-1 is a Matrix Reference Material used for QC verification and/or method development purposes.
|
AgroMAT – Compost (CP-1) Results |
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|
Method: |
0.25g |
7mL HNO3 Digest 600 seconds at 70%, add 7mL HCl and digest again at 70% for 1200 seconds |
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|
Element |
Consensus Value (mg/kg) |
Confidence Interval (mg/kg) |
ColdBlock Average (mg/kg) |
Stdev |
% RSD |
% Recovery |
|
Al |
4579 |
4262-4896 |
4300 |
347.5 |
8.10% |
94% |
|
As |
2.24 |
2.12-2.36 |
2.41 |
0.03 |
1.20% |
108% |
|
Ca |
18530 |
18100-18960 |
18256 |
184.5 |
1.00% |
99% |
|
Cd |
0.719 |
0.663-0.774 |
0.75 |
0.023 |
3.10% |
104% |
|
Co |
3 |
2.84-3.17 |
3 |
0.3 |
9.70% |
103% |
|
Cr |
16.1 |
15.0-17.1 |
16 |
0.35 |
2.20% |
99% |
|
Cu |
76.2 |
73.5-78.9 |
76.2 |
3.965 |
5.20% |
100% |
|
Fe |
25547 |
24526-26568 |
26496 |
24.5 |
0.10% |
104% |
|
Hg |
0.142 |
0.126-0.158 |
0.136 |
0.001 |
0.70% |
96% |
|
K |
2373 |
2252-2495 |
2131 |
3.805 |
0.20% |
90% |
|
Mg |
1720 |
1656-1785 |
1722 |
46.535 |
2.70% |
100% |
|
Mn |
710 |
696-725 |
741 |
3.65 |
0.50% |
104% |
|
Na |
908 |
– |
990 |
70.15 |
7.10% |
109% |
|
Ni |
11.1 |
10.6-11.7 |
10.4 |
1.3 |
12.50% |
94% |
|
Pb |
15.6 |
14.9-16.2 |
16.7 |
0.495 |
3.00% |
107% |
|
Se |
0.899 |
0.813-0.984 |
0.924 |
0.086 |
9.30% |
103% |
|
Zn |
248 |
242-254 |
273 |
0.08 |
0.03% |
110% |
Click here to download the Application Note in PDF format.
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ColdBlock Technologies Inc.
4551 Zimmerman Ave
Niagara Falls, ON L2E 3M5
info@coldblock.ca.
