查询词典 precipitation

It was further purified by ultracentrifuge and repeated precipitation and purification with ethanol to obtain the required polysaccharide components, in which MEP\|SP of molecular of 10 000～100 000 was purified and separated by...

对其中分子量为 10 0 0 0～ 10 0 0 0 0的多糖，采用DEAE 纤维素离子交换柱，以不同浓度NaCl为洗脱液，进行纯化分离，再经SepharoseCL 6B纯化得到 2种水溶性多糖MEP SP2和MEP SP3。

Igniarius were carried out. It will be of scientific significance in researching and developing rare medicial fungi and be useful for searching new natural antitumor medicine.The crude polysaccharides of P. igniarius PIP30、PIP60、PIP80 and PIWE1-10、PIWE10-100、PIWE100 were obtained by ethanol precipitation and ultrafiltrate respectively after hot water extracting.

首先对桑黄子实体多糖进行了分离纯化，通过热水提取、乙醇分级沉淀分离得到粗多糖PIP30、PIP60和PIP80，通过超滤分离得到粗多糖PIWE1-10、PIWE10-100和PIWE100；6种粗多糖经体外刺激淋巴细胞增殖实验表明均有体外刺激淋巴细胞增殖的作用。

30U、P30W、P30S1 and P30S2 were isolated from PIP30, and P60U、P60W、P60S1 and P60S2 were isolated from PIP60, and P1W、P1S1 and P1S2 were isolated from PIWE1-10, and P10W、P10S1 and P10S2 were isolated from PIWE10-100, and P100U、P100W、P100S1 and P100S2 were isolated from PIWE100 using DEAE Sepharose F. F. The proliferation rates of lymphocyte in vitro of each polysaccharide fractions obtained during the isolation and purification were detected in order to observe their immune activities. The results showed that crude polysaccharides both obtained from ethanol precipitation and ultrafiltrate had the promoting effects on lymphocyte proliferation in various degrees. P30U、P30W、P30S1、P30S2、P60U、P60W、P60S2、P1S1、P1S2、P10S1、P10S2、P100U、P100W、P100S1 and P100S2 had the promoting effects on lymphocyte proliferation.

IP30经阴离子交换层析(DEAE-Sepharose Fast Flow)得到分级多糖P30U、P30W、P30S1和P30S2，PIP60经阴离子交换层析得到分级多糖P60U、P60W、P60S1和P60S2，PIWE1-10经阴离子交换层析得到分级多糖P1W、P1S1和P1S2，PIWE10-100经阴离子交换层析得到分级多糖P10W、P10S1和P10S2，PIWE100经阴离子交换层析得到分级多糖P100U、P100W、P100S1和P100S2；采用体外刺激淋巴细胞增殖实验对离子柱分级分离的多糖进行活性实验表明P30U、P30W、P30S1、P30S2、P60U、P60W、P60S2、P1S1、P1S2、P10S1、P10S2、P100U、P100W、P100S1和P100S2是有活性的。P60W、P60S1、P1S1、P10S1和P100S1经凝胶柱(Sephacryl S系列材料)层析获得五个纯多糖组分P60w1、P60s1、P1SP1、P10SP1和P100SP1。

In general, NH4+ can't generate the precipitation with negative anions directly, but some salt ammonium is undissolved, just as MgNH_4PO_4、MnNH_4PO_4、MoNH_4PO_4 and so on.

一般情况下NH_4~+不与阴离子生成沉淀，但它的某些复盐不溶于水，如MgNH_4PO_4、MnNH_4PO_4、MoNH_4PO_4、ZnNH_4PO_4 等。

Acid brown NR could combine with albumin such as bovine serum albumin or human serum albumin in acidic Britton-Robinson solution and produce a undissolved precipitation.

采用分光光度法研究了酸性棕NR 与血清白蛋白的结合反应。

Height above sea level ; Geographical coordinates index ; Forest area and unforested area ; Precipitation

海拔高；地理座标指数；林区与非林区；降水量

Objective: To study the influence of coefficient of unguent and feasibility of method of chitosans clarification replaing water extraction and alcohol precipitation method.

目的：探讨壳聚糖澄清法替代乙醇沉淀法工艺的可行性及对浸膏得率的影响。

Result: Coefficient of Unguent of water-extraction and alcohol-precipitation method was 17. 2%, Coefficient of Unguent of chitosans clarification method was 12.8%, and macro-reticular absorbing resin method was 3.1%. They could clarify liquor of water-extraction.

结果：乙醇沉淀法所得的浸膏得率为17.2％，壳聚糖澄清法所得的浸膏得率为12.8％，大孔吸附树脂法所得的浸膏得率为3.1％，3种方法均能够较好地使水提液澄明，且后两者还能够在降低浸膏得率、保留有效成分、保证制剂稳定性方面优于前者，并能缩短生产周期，降低成本。

Coefficient of Unguent of macro-reticular absorbing resin,chitosans clarification method, water-extraction and alcohol-precipitation methods were compared, and qualitative assay of Ginsenoside Rg1 ,Re, and snide measurement of Ginsenoside Rg1,Ferulic acid, and stability experiment were made.

比较大孔吸附树脂法、乙醇沉淀法和壳聚糖澄清法所得到的浸膏得率及浸膏中人参皂苷Rg1，Re的定性分析以及Rg1、阿魏酸含量测定考察。

Another explanation could be that there may be unmeasured correlates of precipitation, which themselves differ across counties, that may influence the occurrence of autism.

另一种解释可能是不可测量的降雨关联性，它们随着地区不同而不同。这可能影响孤独症的出现。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。