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<p>This document specifies procedures for the laboratory determination of the total elemental sulfur and the sulfate half-ester content of cellulose nanocrystals (CNCs) by inductively coupled plasma-optical emission spectroscopy and conductometric titration, respectively, including sample preparation, measurement methods and data analysis.</p>
<p>This document is applicable to the characterization of CNCs:</p>
<p>a) with all monovalent counterions (particularly hydronium and sodium cations);</p>
<p>b) which are either in the never-dried state in aqueous suspension, or have been redispersed from a dried form; and</p>
<p>c) which have been extracted from any naturally occurring cellulose source using a range of sulfuric acid hydrolysis conditions, or have been sulfated post-hydrolysis using sulfuric acid.</p>
Reģistrācijas numurs (WIID)
70861
Darbības sfēra
<p>This document specifies procedures for the laboratory determination of the total elemental sulfur and the sulfate half-ester content of cellulose nanocrystals (CNCs) by inductively coupled plasma-optical emission spectroscopy and conductometric titration, respectively, including sample preparation, measurement methods and data analysis.</p>
<p>This document is applicable to the characterization of CNCs:</p>
<p>a) with all monovalent counterions (particularly hydronium and sodium cations);</p>
<p>b) which are either in the never-dried state in aqueous suspension, or have been redispersed from a dried form; and</p>
<p>c) which have been extracted from any naturally occurring cellulose source using a range of sulfuric acid hydrolysis conditions, or have been sulfated post-hydrolysis using sulfuric acid.</p>
