中性氧化铝

1
Alumina-N
中性氧化铝(Alumina-N) pH=7.5；强极性吸附剂。表面呈中性，容易保留杂环类（含氮、磷、硫基），芳香烃和有机胺等富电子化合物。
2
Alumina N-neutral
中性氧化铝(Alumina N-neutral)固相萃取柱 中性氧化铝萃取柱，pH=7.5；强极性吸附剂。表面呈中性，容易保留杂环类（含氮，磷， .
3
Cleanert Alumina
Cleanert Alumina N(中性氧化铝) pH=7.5；强极性吸附剂。表面呈中性，容易保留杂环类（含氮，磷，硫基），芳香烃和有机胺等富电化合物。
4
neutral aluminum oxide
中性氧化铝作为吸附剂对土霉素薄层层析的效果测定关键词土霉素薄层层析 中性氧化铝 [gap=793]Key words Oxytetracycline; neutral aluminum oxide; thin layer chromatography

1
方法：采用HPLC法测定经中性氧化铝处理的样品。
Methods: HPLC method was used to determine the sample treated by neutral Aluminum Oxide.
2
方法采用甲醇索氏提取，中性氧化铝柱层析分离纯化、高效液相色谱法测定连翘中连翘苷含量。
METHODS The content of phillyrin in forsythia was determinated by using Soxhlet extractor with methanol, separation and purification with the neutral aluminum oxide column and HPLC method.
3
样本用丙酮提取，加二氯甲烷萃取，通过中性氧化铝和活性炭混合柱层析净化，然后上气相色谱用NPD检测。
The procedure was described, including extraction by acetone and dichloromethane, cleaning up by passing through a column made up of neutral alumina and active carbon, determination by GC with NPD.

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