To follow the current gsp specifications and decrees and codes on medicines , shanghai sunbow pharmaceutial co . , ltd . chinese medicine herbal tablets factory invested more than 1 million yuan rmb in 1999 to rebuild the quality control room equipped with high - recision instruments , such as high - efficiency liquid chromatographic instrument , high - efficiency colour spectram meter for gas phse , automatic polarimeter and ultraviolet spectrophotometer . this provides a scientific guarantee for medicine production and storage and enables medicine to reach the international advanced level in monitoring of various indexes like the conteng of effective composition , content of heavy metals and residual pesticide content 為符合現(xiàn)有的gsp規(guī)范及藥品法規(guī), 1999年上海虹橋藥業(yè)中藥飲片廠投資100多萬元改建了質(zhì)量檢測(cè)室,配以高效液相色譜儀、高效氣相色譜儀、自動(dòng)旋光儀、紫外分光光度計(jì)等高精密儀器,使藥品的生產(chǎn)和儲(chǔ)存有了科學(xué)的保證,并使藥品在有效成分含量、重金屬含量和農(nóng)藥殘留量等指標(biāo)監(jiān)測(cè)上達(dá)到國(guó)際先進(jìn)水平。
A set of microemulsions of water / span80 / transformer oil with different water content are prepared and their optical activity are measured with the changes of applied electric field and , the angle between the electric vector of the incident linearly polarized light and the external electric field , using an automatic polarimeter 對(duì)于某一濃度的微乳液,在外電場(chǎng)的作用下,旋光角平隨0變化且先增大后減小。實(shí)驗(yàn)測(cè)得微乳液的電致旋光效應(yīng)為正,即外電場(chǎng)作用下,微乳液樣品為右旋物質(zhì)。
A physical model of electrically induced optical activity of electrorheological fluids is derived . a set of electrorheological fluids and microemulsion with different concentration are prepared and their electrically induced optical activity are measured by means of an automatic polarimeter . on this foundation , the following results have been completed 建立了電場(chǎng)誘導(dǎo)電流變液旋光的唯象物理模型,并應(yīng)用wzz - 2a型自動(dòng)旋光儀對(duì)不同材料的電流變液和微乳液的旋光效應(yīng)進(jìn)行了測(cè)量。
Several kinds of er fluids with different concentration are prepared and their optical activity are measured with the changes of applied electric field and using a automatic polarimeter . experiments indicate that when none of the external electric field e , concentration c and 9 are equal to zero , er fluids appear optical activity . for a given concentration , optical rotation angle increases with electric field and concentration 實(shí)驗(yàn)發(fā)現(xiàn):無外電場(chǎng)作用時(shí),微乳液沒有旋光效應(yīng);當(dāng)e > o且濃度c和0均不為零時(shí),出現(xiàn)旋光效應(yīng)且旋光角大小隨電場(chǎng)增加而增加;存在一個(gè)飽和電場(chǎng)值es ,當(dāng)大于es時(shí),旋光角平趨于一定值。