样品量

结果表明，K1受色谱柱填料、长径比和样品量影响较大，载气流速影响不明显，柱温的影响与色谱柱的填料有关。

The results show that the chromatographic column packing , column length and sample volume affect K1 greatly , but the carrier-gas flow not evidently .

如果样品量允许，复测应进行三次。

Reassays should be done in triplicate if sample volume allows .

文中着重探讨了影响pH区带逆流色谱分离效果的流动相流速、逆流色谱转速、溶剂组成、样品量和酸碱度等主要影响因素。

The main factors for the separative effect of pH-zone-refining Countercurrent Chromatography are discussed in this paper .

试验证明，CCD近红外光谱方法具有重现性好、分析速度快、使用样品量少、可以在线分析等优点，可以用于无机物的常规分析。

The CCD NIR method has the advantages of rapidity , good repeatability , small quantity of sample required and capability of being online analysis .

用PCR技术进行品种鉴定，简便、快速、灵敏度高，需要的样品量少，检测不受时间、取样部位限制，且结果可靠。

PCR testing is simple , celerity and delicate . Testing is not restricted with time and sampling parts . The result of the method is credible .

样品量以100mg为宜，但不足100mg时进行品种间的比较仍可考虑采用。

100 mg sampling weight is better , but less than 100 mg can also be used when comparing varietal amylose content .

最近，酶联免疫吸附测定法（ELISA），因具有成本低、耗费少、所需样品量少以及样品处理简单等优点，已开始用于品质预测和筛选。

Recently , enzyme-linked immunosorbent assay ( ELISA ) with its significant advantages of low capital , low running costs , small sample amount needed and simple sample handling , has been used for quality predicting and screening .

接近地表的浅层地下水（Q4）样品量仅有5个，但是其氯同位素组成却有正值也有负值，氯同位素变化区间为-0.41‰-0.19‰。

There are only five samples in superficial aquifer ( Q4 ), but the chlorine isotope value ( CIV ) is not only positive but also negative . The interval is 0.41 ‰ - 0.19 ‰ .

对RVA测定的主要干扰因子分析，发现高温烘干前处理和糙米粉显著干扰，而水质轻微干扰分析，总体上它们并不影响对品种的评价，但样品量严重影响测定结果。

The analysis for interfering factors indicated that high temperature pretreatment , brown rice and water resources might affect the RVA profile more or less , but not affect the evaluation . However , the sample quantity seriously influenced the testing result .

研究了差热分析（DSC）法测定化工品、药品纯度的条件，测定的最佳条件为升温速率0.7℃/min，样品量2～3mg，保护气流速20～40mL/min。

The purity determination condition of chemicals and pharmaceuticals by DSC technique was introduced . The optimal testing conditions are : heating ramp being 0.7 ℃ / min , sample weight being 2 - 3 mg and gas flow rate being 20 - 40 mL / min.

推荐将盐滴定电位滴定（STPT）法作为测定土壤PZC的常规方法，该法较电位滴定（PT）法简便、消耗样品量较少，而比盐滴定（ST）法获取的信息量较多。

Results showed that : ( 1 ) Salt titration potentiometric titration ( STPT ) method was recommended for routine analysis of soil PZC , for it could provide more information than salt titration ( ST ) method , and was less laborious and sample consuming .

在热解残渣中检出了大量四至八氯取代的PCDDs和PCDFs，约占样品量的40%，其中包括剧毒的2,3,7,8-TCDD。

Large quantity of tetra - through octa - PCDDs and PCDFs , amounting to about 40 percent of the sample wight were found in the waste . Among them , 2,3,7,8-TCDD , the most toxic congener , was also detected .

本文对测定桐油碘值的Hanus法和Wijs法进行了比较研究，分析了桐油样品量、反应温度和作用时间等三个重要因素，找到了测定桐油碘值的较好条件。

An unreliable result was obtained by using Hanus method for the determination of iodine number of tung oil . But the better conditions of determination has been found after a careful examination of three most important factors , viz . sample weight , reaction temperature and time .

需要多少样品量？样品用完之后能再用吗？

How much sample material is required ? Can it be reused ?

环境气体标准样品量值的计算及不确定度分析

Determination and Evaluation of Uncertainty on Environmental Gas Reference Materials environmental standard

样品量对测样的重复性影响较小；

The weight of samples had less influence on the measuring repeatability ;

一次能灰化的样品量大；

The apparatus can ash a large amount of samples at a time ;

样品量应足够进行三次独立分析。

The volume of samples should be sufficient for analysis on three separate occasions .

然而它们所需要的样品量很小，以至于难以进样和检测。

However , they require very small sample volumes that are difficult to inject and detect .

大大减少了所需的样品量和分析时间，提高了分析结果的精密度。

Small sample volume shorten analysis time and improved analytical precision are obtained for the on-line procedure .

顶空技术快速简单，不需要有机溶剂，需要的样品量少，分离过程中无杂质生成；

Headspace techniques are simple , quick and solventless techniques , and require small amounts of sample without artifacts ;

结论根据药材种类、贮存时间，选取合适的提取方法和适当的样品量。

CONCLUSION The suitable methods and samples are chosen to both different kinds and reserved time of crude drugs .

用此方法模拟非线性条件下的色谱流出曲线，能直观地看到吸附系数和样品量对色谱峰拖尾的影响。

Using this method , the effects of absorption factor and sample concentration on skewed chromatographic peak can be observed clearly .

通过两种方法的比较证明：直接探测法具有原理简单、消耗样品量少、结构容易实现等优点；

The experimental results proved that direct detection method is simple and easy to realize , and to consume fewer reagents ;

结论：方法准确、快速、可行，适于体外释放实验样品量大的要求；

CONCLUSION : The method was accurate , fast and applicable for release study in vitro with of many samples and jobs .

该模式具有高的灵敏度、精密度和稳定性，对于样品量较少的痕量检测尤其具有现实意义。

This strategy shows high sensitivity , good precision and good stability . It is of especial importance towards trace amount detection .

探讨了最佳的取样条件（包括不同极性涂层的纤维头、样品量、平衡温度、平衡时间等）。

The optimum sampling conditions were investigated , including the polarity of fiber coating , sample amount , equilibrium temperature and time etc.

方法操作简便，回收率高，可以进较大的样品量，因而相对灵敏度明显提高。

The operation of the method is simple and the relative sensitivity is markedly increased because of higher recoveries and larger loading capacity of the sample .

该方法所需样品量少，简单易行，热解温度较低，对仪器要求不高，是研究石油及烃源岩抽出物非烃组分中含氧化合物的有效方法。

This method is easy to be operated and has less examples and no special requirement on instrument . The reaction needs a low thermal temperature .

在饮用水的检测中，运用这种方法，需要的样品量少，从而减少了外部因素的干扰。

Drinking water testing , the use of this method , the amount of sample needed is very small , thus reducing the interference of external factors .