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- Karl-Fischer coulometry is one of the most commonly used methods for moisture content determination,but the present reagents are unsatisfactory for the aldehyde samples. 改进了现有的卡氏试剂;采用混合溶剂和咪唑;制成了适于醛类样品的卡尔.;费休试剂。
- Determination of moisture content with the Karl-Fischer coulometry for aldehyde samples 卡尔·费休库仑法测定醛类样品中的水分
- Kindly send us two samples of each class quote for. 报价时,请对每一个等级的各寄两个样品。
- By parcel post our samples were sent. 我们的样品是通过邮包寄送的。
- Our quality is based solely on our sales samples. 我们的质量完全以货样为准。
- Samples are furnished on demand. 一经要求,即供样品。
- There are many admiral samples in the collection. 这部集子里有许多花蝶标本。
- aldehyde samples 醛类样品
- On display are more than40,000 samples of export commodities. 陈列的出口商品的样品共四万多种。
- Receiving your samples, we have shown them to their buyers. 贵公司的样品已收到,现已转给用户。
- We are sending out samples in the hope of gaining comments. 我们正在寄送样品,以期徵求意见。
- These TV sets do not assort with the samples. 这些电视机与样品不符。
- Do you think you can send us some samples? 你看你能寄给我们一些样品吗?
- Samples of urine and blood are taken and analyzed. 对尿样和血样进行分析化验。
- This reaction involves disproportionation of the aldehyde. 这个反应就是醛的歧化作用。
- We write to remind you to send us your samples. 我们来信是为了提醒你们把货样寄来。
- Subject:To determine aldehyde chemical compound in alcohol quickly. 目的:快速检测酒中醛类化合物.;方法:毛细管气相色谱法。
- This reaction involves disproportionation of the aldehyde . 这个反应就是醛的歧化作用。
- These buttons do not assort with the samples. 这些纽扣与样品不符。
- Samples are presented free in the company. 本公司样品免费赠送。