http://www.scientistsolutions.com/t23751-6020a+digestion.html Life Science Discussion en-us sci7feed@sci7.nojunkorherepleasespam.com hourly 1 2005-05-05T12:00+00:00 http://www.scientistsolutions.com/t23751-6020a+digestion.html ]]> Wed, 12 Sep 2012 15:43:13 GMT http://www.scientistsolutions.com/t23751-6020a+digestion.html Wed, 12 Sep 2012 09:59:55 GMT http://www.scientistsolutions.com/t23751-6020a+digestion.html 0.5 ppb
10 ppb
50 ppb
100 ppb
This curve has always worked well for me for most elements.]]> Fri, 07 Sep 2012 18:22:07 GMT http://www.scientistsolutions.com/t23751-6020a+digestion.html Mon, 03 Sep 2012 21:53:17 GMT http://www.scientistsolutions.com/t23751-6020a+digestion.html ]]> Sun, 02 Sep 2012 06:33:42 GMT http://www.scientistsolutions.com/t23751-6020a+digestion.html Shake sample and aliquot 50 mL of sample into vial
Add 1000 uL of 1:1 trace metal grade HNO3 and Type I water solution
Add 500 uL of 1:1 Ultra trace metal grade HCl and Type I water solution
Place watchlids on each vial and place samples on block digestion system set to 85 C for 5-6 hours (until samples are reduced b...]]> Sat, 18 Aug 2012 21:29:56 GMT http://www.scientistsolutions.com/t23751-6020a+digestion.html If you are using a block digestion system then you need to follow 3050b digestion method, which does not use HCl. Here is that method in a nutshell:
Weigh out 1-2 grams of a well mixed sample into a digestion vial
Add 10 mL of a 1:1 trace metal grade HNO3 in Type I water solution
Place watchlids on vials and reflux for 15-20 minutes on blo...]]> Sat, 18 Aug 2012 21:25:03 GMT http://www.scientistsolutions.com/t23751-6020a+digestion.html Fri, 10 Aug 2012 02:45:21 GMT http://www.scientistsolutions.com/t23751-6020a+digestion.html Tue, 07 Aug 2012 19:49:01 GMT