| | 加工定制：是 | | 品牌：翔鹰技术 | | 型号：XiangyingGC7990plus | |
| | 测量范围：ppm | | 测量对象：葡萄酒中挥发性酯类 | | 控温范围：450 ℃ | |
| | 功率：1800 w | | 尺寸：480 mm | | 重量：45 kg | |
| | 乙酸乙酯：葡萄酒中挥发性酯类 | | 乙酸丁酯：乙酸异戊酯 | | 己酸乙酯：甲缩醛 | |
| | 植物油：芝麻香白酒 | | 3-甲硫基丙醇：二甲醚 | | | |
Wine of aldehydes, alcohols and esters of volatile compounds determines Wine flavor. The national standard GB 15037 - 2006 to wine in methanol content gives the clear limits, the provisions of white wine, rose wine in methanol content is less than or equal to 250 mg / L, red wine in methanol content is less than or equal to 400 mg / L, and other alcohols, aldehydes and esters of limit value is not explicitly stipulated. Acetaldehyde, alcohol and esters in wine affect the taste of wine judgment, such as low content of acetaldehyde will make the wine has a pleasant fruity flavor, but high concentration of acetaldehyde will make the wine smell. In recent years, it is important to establish a suitable method to detect the volatile compounds in wine to ensure the quality of wine and to maintain the health of the drinkers.
Gas chromatography in the analysis of volatile small molecules have the advantages of high sensitivity, simple method is stable and operation. The detection of volatile components in grape wine by gas chromatography, the corresponding sample pre treatment method, static headspace method and solid phase micro extraction technology. Many references is by gas phase chromatography determination wine in the alcohols or esters, few simultaneous determination of alcohols and esters compound method is reported and gas chromatography determination of acetaldehyde content in wine is rarely mentioned in the literature.
Tengzhou City Xiangying Analysis Technology Co., Ltd. first of wine is distilled, and then the gas chromatography Headspace - XiangyingGC7990plus determination of volatile esters in wine with satisfactory results.
葡萄酒中的醛类、醇类和酯类等挥发性化合物决定了葡萄酒的风味。国家标准GB 15037—2006对葡萄酒中甲醇含量给出了明确的限值,规定白葡萄酒、桃红葡萄酒中甲醇含量≤250 mg/L,红葡萄酒中甲醇含量≤400 mg/L,而其他醇类、醛类和酯类化合物的限值则无明确规定。葡萄酒中的乙醛、醇类和酯类含量影响人们对葡萄酒口感的判断,如低含量乙醛会使酒产生令人愉快的水果香味,但高浓度乙醛则会使酒产生异味。近年来,假葡萄酒事件引起人们对葡萄酒品质的重视,建立合适的方法检测葡萄酒中挥发性物质对保证葡萄酒品质、维护饮用者的身体健康具有重要意义。
气相色谱法在分析挥发性小分子物质方面具有灵敏度高、方法稳定和操作简单等优点,对葡萄酒中挥发性成分的检测主要采用气相色谱法,相应的样品前处理有直接进样法、静态顶空法和固相微萃取技术。文献报道较多的是采用气相色谱法测定葡萄酒中醇类或者酯类化合物,很少有同时测定醇类和酯类化合物的方法报道,气相色谱法测定葡萄酒中的乙醛含量也少有文献提及。
滕州市翔鹰分析技术有限公司先对葡萄酒进行蒸馏,然后采用XiangyingGC7990plus静态顶空-气相色谱法测定葡萄酒中的挥发性酯类，结果满意。
The Chinese technology, analysis technology leader
The gas chromatography technology, the industry benchmark enterprise
1 focused on the development of gas chromatograph
2 committed to becoming a leading supplier of analytical instruments in China
3 to provide you with the most powerful support
4 super high cost quality products
5 high quality and perfect after sales service
翔鹰技术，中国分析技术的领跑者
翔鹰技术，气相色谱行业*企业
1.专注气相色谱仪的研制
2.致力于成为国内分析仪器领先供应商
3.为你提供***强有力的支持
4.超高性价比品质过硬产品
5.优质完善快捷的售后服务
扫一扫，手机浏览
