碱含量

用HPLC进行定量分析，发现后者的高三尖杉酯碱含量明显高于前者。

Quantitative analysis by HPLC and found the latter homoharringtonine alkali content was significantly higher than the former .

碱含量对粉煤灰抑制ASR效果的影响

Effect of Alkali Content on Fly Ash Inhibiting ASR

用HPLC法测定苦参碱含量。

Matrine was determined by HPLC .

本文探讨了动态LIFT形成的原因，并研究了盐含量，碱含量对复合体系／大庆原油间动态LIFT的影响。

The effects of salt or base contents on the transient interface tension had been discussed .

不同时间采摘的喜树嫩叶中喜树碱含量的HPLC分析

Analysis on the Contents of Camptothecin in Young Camptotheca acuminate Leaves Picked in Different Dates by HPLC

RP-HPLC测定六味木香散中胡椒碱含量

Determination of piperine in Liuwei Muxiang San by RP HPLC

结论高效液相色谱法（HPLC）可准确、简便、快速测定苦参药材中苦参碱含量。

CONCLUSIONS The new HPLC is accurate , simple and quick for the quality control of Matrine in Sophors flavescens Ait .

不同广豆根炮制品中苦参碱含量比较中药材GAP实施的国内外比较与相关基地建设问题

Content comparision of matrine in different processed products of root of Sophora tonkinensis Comparision of GAP Implementation in China and Abroad and Base Construction of Chinese Medicinal Materials

结论：该法与HPLC法所测结果吻合，但具有有机溶剂消耗少等优点，可用于清经胶囊中小檗碱含量的质量控制。

Conclusion : This method is accurate as same as HPLC , and could be used for quality control of berberine from Qingjing capsules .

而种子中浸提液的芥子碱含量，相对电导率以及MDA含量则随着种子劣变程度增加而上升。

Third , relative electrical conductivity , the content of MDA and sinapine in seed exudates added with the increase of the seed deterioration degree .

结果用EMS处理的长春花愈伤组织与对照相比，不仅生长快，并且吲哚总碱含量高。

Results The calli treated with 0.3 % EMS grows faster , contains higher content of total indole alkaloids than the contrast .

针对用电位法滴定石油产品总酸、总碱含量时无明显滴定突跃点的情况，研究了用pH终点滴定法的可行性和可靠性。

Since no obvious leap point can be observed when determine the total acid or total alkaline of petroleum products by potentiometric titration , the feasibility and reliability of pH end-point titration method are examined .

在碱含量为2.0%时，掺加相同n（Li）/n（Na）的锂化合物，其对膨胀的长期抑制效果与溶解度有关。

At the alkali content of 2.0 % and with the same molar rate of n ( Li ) / n ( Na ) of lithium compounds , their long_term effects in inhibiting expansion are related with the solubility .

GA、ABA、B9、CCC等生长调节物质对块茎形成的影响与其对茄碱含量的影响无关；

The effects of the plant growth regulators , such as GA , ABA , B_9 and CCC on tuberization of etiolated sprouts or potato plants were not interrelated to their effects on solanine content .

结果两种方法的结果均为采用氯仿作为溶剂、固液比例为1.0∶7.5、回流时间3h×3，所得总碱含量最高。

Results Both of the design methods adopted trichloromethane as the solvent , with the solid-to-liquid ratio of 1:7.5 and reflux time of 3 h with 3 repetitions for the highest yield of alkaloids .

结果表明辉绿岩SiO2偏低，全碱含量高，Ti和P含量也较高，相对贫Ca，Mg平均55，属碱性系列；

The results show that the diabase samples have relatively low SiO2 content and high total alkalis , and are rich in Ti and P , but poor in Ca , with an average Mg # of 55 . All samples belong to alkaline series .

水泥基材料的初始开裂时间与电阻率曲线上的特征点以及最大放热峰之间存在一定的联系，所提出的阻率步长与热率步长之比值K与水泥基材料的开裂敏感性及碱含量密切相关。

Moreover , there is an interactive effect between the initial cracking time and resistivity inflexion , as well as maximum heat peak . A ratio of resistivity step / heat step ( as K value ) indicates a relation between early-age deformation and alkali content of cement-based materials .

从胶凝材料浆体抗裂性的试验结果来看，粉煤灰烧失量、碱含量、SO3含量越低，掺粉煤灰水泥浆体的抗裂性越好。

The lower the loss on ignition , alkali content and SO3 content of fly ash are , the better the crack resistance of the blended cement paste is .

研究了土壤水分、土壤自然干旱、PEG模拟干旱、土质、光强、光质等环境条件对年生喜树幼苗生长、光合作用、幼苗喜树碱含量和产量的影响。

The effect of environmental factors such as soil moisture , natural soil drought , PEG drought , soil quality , light intensity and light quality on the growth , photosynthesis , camptothecin ( CRT ) concentration and yield of one-year-old Camptotheca acuminata seedlings were investigated .

方法：采用正交设计L9（34）法，以总浸膏量、总皂苷含量和苦参总碱含量为指标，综合评分考察。

Method : Orthogonal design L_9 ( 3 ~ 4 ) was used to study the best extraction condition with the content of the synthesized evaluation of total extraction , total saponin and total matrine .

对于低碱含量混凝土，在早期，1NNaCl溶液对混凝土膨胀的值高于1NNaOH溶液，NaOH与NaCl的复合会导致更低的膨胀值，但在后期，结果正好相反；

At the period of low-alkali concrete , the expansion by 1N NaCl soak is higher than that by 1N NaOH , and a further lower expansion can be produced by NaOH + NaCl soak , yet at the late stage the results are exactly opposite ;

试验中采用了高低两种不同碱含量的混凝土，浸泡液用1NNaCl、1NNaOH及其分别与3%和7%的NaCl的复合，碱集料反应环境温度为38℃。

The concretes with high and low alkali contents were used for the test . 1N NaOH , 1N NaOH + 3 % NaCl and 1N NaOH + 7 % NaCl were all used as the soak , and the ambient temperature of the reaction was 38 ℃ .

DCA排序发现，产自磐安的蛇足石杉样品，特别是叶的提取液，其紫外光谱明显不同于其它样品，表明紫外光谱法能够用于鉴别石杉总碱含量较高的蛇足石杉药材。

DCA ordination on their UV spectra showed that the UV spectra of the leaf extracting solution form H.serrata of Pan'an was distinctly different from others , revealing the UV spectra could be applied to identify the sample with higher content of assemble alkaloids of huperzine .

AEA碱含量低，膨胀能量大、掺量小、干缩小，混凝土后期强度高，是一种高效、优质、节能的混凝土膨胀剂，具有很好的收缩补偿作用和长期稳定性。

AEA is a high efficiency excellent quality and energy-saving concrete expansion agent with low alkalinity , large expanding energy , small additive and dry shrinkage , high late strength of concrete . It has very good shrinkage compensation and long stability .

对黄连中的小檗碱提取实验结果表明，两步法提取2次只需6min，提取浸膏中小檗碱含量达到53.3%，颗粒度在160~400μm范围内对提取效果基本没有影响。

The experimental results of extracting berberine from Rhizoma coptidis showed that the two steps of extraction only needed 6 min , the concentration of berberine in the extract was 53.5 % and the granule sizes between 160 and 400 μ m did not take effect on the extraction .

长春碱含量仅与枝下高显著负相关。

Vinblastine content only with below-branch height had significant negative correlation .

合理选择硅质校正原料降低熟料中的碱含量

Rational Choice of the Silico-Regulating Materials and Reduction of the Clinker

配伍对葛根芩连汤中小檗碱含量的影响

Influence of compatibility on content of berberine in Gegen Qinlian Decoction

胡椒中胡椒碱含量测定方法的研究

Study on the Method for the Determination of Piperine in Pepper

水泥中有害成分氧化镁、三氧化硫及碱含量的检测控制要点

Content Determination of Magnesia , Sulfur Anhydride and Alkali in Cement