Best Card, Best System … Pharo the new photometry system
Best Card, Best System … Pharo the new photometry system
Best Card, Best System … Pharo the new photometry system
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How is <strong>the</strong> CombiCheck reagent R-2 working?<br />
CombiCheck R-2 = multi parameter solution in one bottle<br />
• How to use CombiCheck: CombiCheck 10, R-2<br />
- First step: Measure <strong>the</strong> sample<br />
- Second step: take a <strong>new</strong> tube and add<br />
<strong>the</strong> sample and 0.1 ml of <strong>the</strong> R-2.<br />
Measure and compare <strong>the</strong> results.<br />
• result = in <strong>the</strong> tolerance range ☺<br />
- <strong>the</strong> recovery is nearly 100 %<br />
• result ≠ out of <strong>the</strong> tolerance range <br />
- <strong>the</strong> recovery is lower or higher 100 %<br />
– matrix effect, e.g. sample<br />
preparation necessary<br />
concentration and<br />
confidence interval<br />
Cat. no.<br />
25 ± 6 mg/l Cl - 1.1473014730<br />
30 ± 8 mg/l COD 1.14540<br />
3.00 ± 0.25 mg/l NH4-N N 1.1455814558<br />
0.60 ± 0.07 mg/l PO4-P<br />
0.30 ± 0.05 mg/l PO4-P<br />
1.14543<br />
1.1484814848<br />
sample = 72 mg/l COD<br />
sample + 0.1 ml = 105 mg/l COD<br />
For pipetting of 0.1 ml very precise pipettes are required.<br />
June 03, 2008 Complete solutions Page 14
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