| | 加工定制：是 | | 品牌：翔鹰技术 | | 型号：XiangyingGC7990plus | |
| | 测量范围：ppm | | 测量对象：葡萄酒中挥发性醇类 | | 控温范围：450 ℃ | |
| | 功率：2000 w | | 尺寸：480 mm | | 重量：45 kg | |
| | 黄酒：葡萄酒中挥发性醇类的测定 | | 甲醇：杂醇油 | | 乙醇：异丙醇 | |
| | 乙酸乙酯：乙缩醛 | | 己酸乙酯：3-甲硫基丙醇 | | | |
Wine of higher alcohols propanol, butanol, isobutanol, isoamyl alcohol, isoamyl alcohol, active amyl alcohol, octanol, beta phenylethyl alcohol, color alcohol, tyrosol, etc. [1,2], is the wine in the main flavoring substance. Higher alcohols types, concentrations and wine types, taste, quality have great relationship, such as ISO butanol, isoamyl alcohol was bitter and astringency, the right amount of isobutanol, isoamyl alcohol, n-propanol give wine.
Technology Co., Ltd. the XiangyingGC7990plus headspace capillary gas chromatography in the determination of higher alcohols in wine and chromatographic conditions: flow rate of carrier gas 1.4mL/min, column temperature program heating: 65 DEG C (min) - 15 DEG C /min-200 DEG C (2 min), shunt ratio of 50:1, into the sample volume 3 Ke; by peak area external standard method for quantitative Tengzhou City Xiangying studies an in of. The measured relative standard deviation for 0.0120% ~ 1.0707%, recovery rate between the 95.18% ~ 102.25%, has simple and convenient operation, good precision and accurate characteristics of a high degree of.
葡萄酒中的高级醇主要有正丙醇、正丁醇、异丁醇、戊醇、异戊醇、活性戊醇、辛醇、β-苯乙醇、色醇、酪醇等[1,2],是葡萄酒中的主要香味物质。高级醇的种类、浓度与葡萄酒的类型、口感、品质有很大的关系,如异丁醇、异戊醇呈苦、涩味,适量的异丁醇、异戊醇、正丙醇赋予葡萄酒。
滕州市翔鹰分析技术有限公司利用XiangyingGC7990plus顶空-毛细管气相色谱测定葡萄酒中的高级醇,色谱条件为:载气流速1.4mL/min,柱温为程序升温:65℃(0min)-15℃/min-200℃(2min),分流比50:1,进样量3礚;以峰面积外标法定量。测得相对标准偏差为0.0120%￣1.0707%,回收率在95.18%￣102.25%之间,具有操作简便快捷,精密度好、准确度高的特点。
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