SUMMARY
The application note summarizes the digestion of EGGS-1, an egg powder Reference Material using ColdBlock Digestion Pro Series Technology.
| Instrument: | ColdBlock CBM sample digester, chiller, Quartz vessels, ICP-MS & ICP-OES |
| Published: | March 2023 |
| Digestion Time: | 20 Minutes |
| Acid Used: | HNO3 & H2O2 |
| Average ColdBlock Recovery vs. CRM: |
|
Figure 1 EGGS-1 after bulk up
EGGS-1 is a reference material prepared from Canada Grade A dried whole egg powder.
EGGS-1, National Research Council Canada, Measurement Science and Standards, Ottawa, Ontario Canada, September, 2015
|
NRC – EGGS-1 |
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|
Method: |
0.5g |
15mL HNO3 – Digest at 70% power for 15 minutes, add 2mL H2O2 and digest again at 70% power for 5 minutes |
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|
Element |
Reference Values (ppm) |
+/– |
95% Confidence Limits |
Sample A |
Sample B |
Sample C |
Average (ppm) |
Stdev |
% RSD |
% Recovery |
|
|
Low |
High |
||||||||||
|
Al |
540 |
86 |
454 |
626 |
580 |
516 |
553 |
549 |
26 |
4.8% |
102% |
|
Ca |
2480 |
190 |
2290 |
2670 |
2699 |
2227 |
2376 |
2434 |
197 |
8.1% |
98% |
|
Cr |
0.37 |
0.18 |
0.19 |
0.55 |
0.43 |
0.42 |
0.34 |
0.4 |
0.04 |
10.2% |
107% |
|
Co |
0.012 |
0.005 |
0.007 |
0.017 |
0.013 |
0.013 |
0.015 |
0.014 |
0.001 |
6.9% |
114% |
|
Cu |
2.7 |
0.35 |
2.35 |
3.05 |
2.8 |
2.7 |
2.8 |
2.8 |
0.02 |
0.6% |
102% |
|
Fe |
112 |
16 |
96 |
128 |
115 |
108 |
110 |
111 |
3 |
2.8% |
99% |
|
Pb |
0.061 |
0.012 |
0.049 |
0.073 |
0.064 |
0.074 |
0.069 |
0.07 |
0.004 |
5.9% |
113% |
|
Mg |
305 |
27 |
278 |
332 |
309 |
303 |
307 |
306 |
3 |
0.9% |
100% |
|
Mn |
1.78 |
0.38 |
1.4 |
2.16 |
2.07 |
2.01 |
1.75 |
1.943 |
0.14 |
7.1% |
109% |
|
Mo |
0.247 |
0.023 |
0.224 |
0.27 |
0.239 |
0.295 |
0.249 |
0.261 |
0.024 |
9.3% |
106% |
|
P |
10001 |
320 |
9681 |
10321 |
9734 |
9419 |
10079 |
9744 |
270 |
2.8% |
97% |
|
K |
3190 |
370 |
2820 |
3560 |
3359 |
3099 |
3292 |
3250 |
110 |
3.4% |
102% |
|
Se |
1.39 |
0.17 |
1.22 |
1.56 |
1.38 |
1.33 |
1.50 |
1.4 |
0.07 |
5.1% |
101% |
|
Na |
3770 |
340 |
3430 |
4110 |
3867 |
3810 |
4065 |
3914.0 |
109 |
2.8% |
104% |
|
Sr |
5.63 |
0.46 |
5.17 |
6.09 |
5.08 |
5.36 |
6.08 |
5.5 |
0.42 |
7.6% |
98% |
|
V |
0.459 |
0.081 |
0.378 |
0.54 |
0.524 |
0.516 |
0.513 |
0.5 |
0.005 |
0.9% |
113% |
|
Zn |
67.5 |
7.6 |
59.9 |
75.1 |
64.0 |
66.4 |
69.7 |
66.7 |
2.3 |
3.5% |
99% |
Click here to download the Application Note in PDF format.
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