Chemical forms of Se found in herbivore insects, and frass obtained from least squares linear combination fitting of each samples XANES spectra in comparison to standard selenium compounds.
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XANES spectra were obtained from organisms at locations shown in Figures 4 and 5. SeO42−: selenate SeO32−: selenite; Se(GSH)2: seleno-diglutathione; C-Se-C: methyl-selenocysteine, seleno-methionine or seleno-cystathionine. SS: normal sum of squares (quality of fit; 0 = perfect); nd: compound not detectable.No elemental Se0 was found in these samples. Note: fractions do not always add up to exactly 100% because the margin of error can be up to10%.
创建时间:
2015-12-02



