M.J. Walther W. G. Brumbaugh 1991 <p><span>The present paper describes a simple modification of a recently reported </span><span class="highlight">decomposition</span><span> method for determination of </span><span class="highlight">selenium</span><span> in biological </span><span class="highlight">tissue</span><span> by hydride generation atomic absorption. The </span><span class="highlight">modified</span><span> method yielded slightly higher </span><span class="highlight">selenium</span><span> recoveries (3-4%) for selected reference tissues and fish </span><span class="highlight">tissue</span><span> spiked with selenomethionine. Radiotracer experiments indicated that the addition of a small volume of hydrochloric acid to the wet digestate mixture reduced slight losses of </span><span class="highlight">selenium</span><span> as the </span><span class="highlight">sample</span><span> initially went to dryness before ashing. With the </span><span class="highlight">modified</span><span> method, </span><span class="highlight">selenium</span><span> spiked as selenomethionine behaved more like the </span><span class="highlight">selenium</span><span> in reference tissues than did the inorganic spike forms when this digestion modification was used.</span></p> application/pdf 10.1093/jaoac/74.3.570 en Association of Official Analytical Chemists Improved selenium recovery from tissue with modified sample decomposition article