天堂国产午夜亚洲专区-少妇人妻综合久久蜜臀-国产成人户外露出视频在线-国产91传媒一区二区三区

當(dāng)前位置:主頁(yè) > 科技論文 > 化學(xué)論文 >

福林酚比色法測(cè)定酸漿宿萼中總多酚含量

發(fā)布時(shí)間:2018-05-03 22:28

  本文選題:酸漿宿萼 + 福林酚 ; 參考:《食品研究與開(kāi)發(fā)》2016年23期


【摘要】:優(yōu)化福林酚法測(cè)定酸漿宿萼總多酚含量的條件,并對(duì)其進(jìn)行分析評(píng)價(jià)。結(jié)果表明:樣本0.5 mL,福林酚用量1.0 mL,10%Na_2CO_3用量8 mL,當(dāng)反應(yīng)時(shí)間為2.5 h,反應(yīng)溫度為20℃,在波長(zhǎng)760 nm處測(cè)定時(shí),總多酚的含量與吸光度呈良好的線性關(guān)系,該方法操作簡(jiǎn)便、靈敏度高、精密度高,穩(wěn)定性好,適宜酸漿宿萼總多酚含量的測(cè)定。
[Abstract]:The conditions for the determination of total polyphenols in Calyx were optimized and evaluated. The results showed that there was a good linear relationship between the total polyphenols and absorbance when the sample was 0.5 mL, the amount of forin was 1.0 mL / 10 and the dosage of Na2CO3 was 8 mL, the reaction time was 2.5 h, the reaction temperature was 20 鈩,

本文編號(hào):1840372

資料下載
論文發(fā)表

本文鏈接:http://www.sikaile.net/kejilunwen/huaxue/1840372.html


Copyright(c)文論論文網(wǎng)All Rights Reserved | 網(wǎng)站地圖 |

版權(quán)申明:資料由用戶27481***提供,本站僅收錄摘要或目錄,作者需要?jiǎng)h除請(qǐng)E-mail郵箱bigeng88@qq.com