第 33 卷第 4 期 |  | Vol. 33 No. 4 | 2003 年 8 月 | Aug 2003 |
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所屬欄目:分析與測試
高效液相色譜法測定蛋黃卵磷脂中膽固醇的含量 |
孫賽龍; 趙志萍; 謝建龍; 栗彩珍(湖南安淳生物醫藥與食品工程研究所; 湖南長(cháng)沙) |
摘 要:應用高效液相色譜 蒸發(fā)光散射檢測器測定蛋黃卵磷脂中膽固醇含量。采用Hy persilDOSC18(150mm×4.6mm,5μm)色譜柱,以乙腈∶甲醇∶異丙醇=10∶80∶10(v/v)為流動(dòng)相,流速為1ml/min,柱溫為25℃,蒸發(fā)光散射檢測器的空氣流速為2L/min,漂移管溫度為85℃。膽固醇進(jìn)樣量在0.22~1.83μg的范圍內與峰面積的對數呈良好的線(xiàn)性關(guān)系。相關(guān)系數為0.9998,回收率為99.59%。方法操作簡(jiǎn)便,精密度好,結果準確可靠。樣品的測定結果為0.42%。 |
關(guān)鍵詞:膽固醇; 高效液相色譜; 蒸發(fā)光散射檢測器; 蛋黃卵磷脂 |
中圖分類(lèi)號:TQ548+.1 文獻標識碼:A 文章編號:1009-9212(2003)04-0052-02 |
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Determination of Cholesterin in Leicithin from Egg with HPLC-ELSD |
SUN Sai long; etc(Institute of Biologic Medication and Food Engineering; Hunan Anchun; Changsha Hunan; 410015; China) |
Abstract:The Cholesterin in Leicithin from egg was analysized with HPLC ELSD, The conditions are as follow: using hypersil ODS C 18 Column(150?mm×4.6?mm, 5?μm), CH 3CN∶CH 3OH∶(CH 3) 2CHOH=10∶80∶10 as mobile phase, the flow rat 1?ml·min -1 , the temperature of column 25?℃, the gas flow rate 2?L·min -1 , the tube temp 85?℃. The calibration curve is linear in the range of 0.22~1.83?μg for cholesterin(r=0.9998). The average recovery(n=5) is 99.53%. The method is rapid, accurate, and reliable. |
Key words:HPLC ELSD; cholesterin; leicithin |
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收稿日期:2003-06-02
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