固相萃取C4技術(shù)在文物蛋白膠料氣相色譜前處理中的應(yīng)用
[Abstract]:Based on the introduction of solid-phase extraction (SPE)-C _ 4) pretreatment technology, gas chromatography-mass spectrometry (GC-MS) and ion chromatography-(ICS) were used for the first time. The effect of SPE C4 column on the removal of soluble salt ions in the preservation environment of common cultural relics was quantitatively evaluated. The influence of the technique on amino acid analysis results, the effect of protection column and the applicability of the technique to the determination of cultural relics samples were further discussed. The results showed that SPE C4 technology could effectively eliminate the common soluble salt ions such as Na~, K ~, Mg~ (2), Ca~ (2), Cl~-,NO_3~-,SO_4~ (2 -), and the average desalination rate (desalination rate) was 99.99%. After being treated with 30 g / L NaCl, the chromatogram showed a complete peak, and the average relative error of Na~ and Cl~-,11 amino acid content measurement results was about 5%. The baseline of amino acid chromatogram of cultural relics is stable and the separation is good. Therefore, SPE-C4 technology is suitable for the pre-treatment of Chinese ancient protein compound by gas chromatography, and it is of great practical value for the analysis and identification of protein compound of ancient cultural relics in China.
【作者單位】: 西北大學(xué)文化遺產(chǎn)學(xué)院;文化遺產(chǎn)研究與保護技術(shù)教育部重點實驗室;
【基金】:國家自然科學(xué)基金(21175104) 陜西省教育廳基金(13JZ045)資助
【分類號】:K854;O657.71
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