Hi Frank, I did notice your later post and made reference to it in my second post on this subject.
My maths is fine: 250mls of 20ppm silver contains 20mg/L divided by 4 = 5mg silver. Dilute with 5 Litres of plasma. 5.250L contains 5mg of silver. 1L contains 5mg/5.250 = 0.952mg which is a concentration of 0.952mg/L or 1ppm when rounded up. 6.25L would give a concentration of 0.8ppm I cannot perform this test as my solid state ISE reacts with sulphur. Ivan. > -----Original Message----- > From: Frank Key [mailto:[email protected]] > Sent: Thursday, 6 March 2003 4:20 a.m. > To: [email protected] > Subject: Re: CS>Particle vs Ionic - ISE measurement > > > Ivan wrote: > > > > > The adult male has 5 -6 litres of blood circulating throughout the > > body, an adult female 4 - 5 litres. 250ml of 20ppm ionic CS when > > diluted by 5 litres of blood will have a concentration of > 1ppm given > > the unlikely event of 100% absorption. One should suppose > that ionic > > silver will also react with various constituents of the > blood plasma > > to some degree, so there is not much of a margin (if any) > if one can > > read only to 0.4ppm. Many Ion Selective Electrodes will not read > > correctly in the presence of Sulphides or Sulphates, both > of which are > > present in blood plasma. Does Sodium Heparin react with > silver ions? > > > > I don't think this test is reliable. > > Ivan. > > > Perhaps you missed the correction in a later post. The 0.4 > ppm detection > limit was stated in error. The actual detection limit is 0.01 ppm > > I think you have a math error. Assuming 6000 mL blood added > to 250 mL of 20 > ppm silver will result in 6250 mL containing 1.76 ppm which > is 176 times the > detection limit. > > The same test conducted with 500 mL of ionic silver will > have the same > result. > > Sodium heparin does not react with the silver. > > One could also try using an ISE to find ionic silver in > urine. We have not > seen an ISE reading above zero while atomic absorption/emission will > register silver. This is an indication that the silver is > in the form of a > compound, most likely silver chloride. > > frank key > > > > > > -- > The silver-list is a moderated forum for discussion of > colloidal silver. > > Instructions for unsubscribing may be found at: http://silverlist.org To post, address your message to: [email protected] Silver-list archive: http://escribe.com/health/thesilverlist/index.html List maintainer: Mike Devour <[email protected]>
