峰面积
- 名peak area
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方法比较在3种加热方式下丹参提取物共有色谱峰面积及标记性成分丹酚酸B含量的差异。
Methods Common chromatographic peak area and the contents of Salvianolic acid B in three kinds of extracts obtained by 3 kinds of heating methods were compared .
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结果:叶酸在0.1μg~2.0μg范围内,峰面积与进样量呈良好线性关系。
Results : The peak area of folic acid ranged from 0.1 μ g to 2.0 μ g has better linear relation with the sample size .
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定量分析表明,3种成分的校正峰面积与质量浓度呈较好的线性关系(r≥0.9991)。
The linear relationships between the concentration of three components and their peak areas was good ( r ≥ 0.9991 ) .
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DSC曲线的模拟及峰面积计算
Simulation of DSC curve and computation of peak areas
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方法采用CO2超临界萃取法和的GC-MS联用分析技术对萃取物进行分析,并用峰面积归一化法测定各化合物的相对含量。
Methods CO_2 supercritical extraction and GC-MS were applied in the extraction and analysis .
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且其杂质含量越低,峰面积的RSD越大。
The lower impurity content was , the bigger the RSD was .
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结果:根据相对保留值α和相对峰面积Sr建立了芦根药材的指纹图谱。
RESULTS : Fingerprint was established on the basis of the relative retention value and the relative peak area .
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在衰变过程中,铀及其衰变子体放射出γ射线和特征X射线,通过能谱分析可以求出它们的峰面积和相对探测效率。
Uranium isotopes and their daughters emit - rays and X-rays during the decay process , their peak area and relative efficiency can be calculated through spectrum analysis .
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结果:蒙花苷在0.1848~1.386μg的范围内,其进样量与峰面积呈良好的线性关系。
Result : When linarin ranged from 0.1848 μ g to 1.386 μ g , there was a good linearity relationship between sample size of linarin and peak area .
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基于特征函数的NaIγ能谱高斯峰面积计算
Gaussian peak area computation of NaI gamma spectrometry based on the eigenfunction
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在0.05/0.40mg/ml范围内,浓度与峰面积具有很好的线性关系(相关系数为0.9997);
The linear correlation coefficient between the concentration of ICPs and the peak area was equal to 0.9997 in the concentration range of 0.05-0.40 mg / ml.
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两种纤维具有6个相同的主要Raman光谱带,但制备纤维的峰面积较小。
The Raman spectra of two kinds of fibers contain six same Raman spectra band , but peak area of the synthesized fiber is smaller .
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通过水提物、醇提物的HPLC特征图谱的比较,我们发现,不同极性的提取部位峰面积有一定的差别。
Through comparison HPLC Feature print of the water extract , ethanol extract , we found that extracts of different polarity , there is difference between the peak area .
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用外标法单点校正峰面积定量,准确测定不同合成路线及精制阶段的CL-20纯度。
The purity of CL 20 produced by different synthesis routes and refined stages was determined by the method of using external standard calibration .
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当进样量为3-18μg时,试样与杂质峰面积呈良好的线性关系,且主峰与杂质峰分离度好。
When feed is 3 - 18 μ m. the sample has a good linear relation with impurity peak area , and the main peak can be nicely separated from the impurity peak .
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结果:随灭菌温度、pH值的升高,NO-2的浓度和有机降解物峰面积百分比均有不同程度的增加,其中pH值影响较大,有机降解物增加较为明显。
RESULTS : The concentration of NO - 2 and the peak area percentage increased with the raise of sterilization temperature and pH.
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结果:在重复性测试中,乙醇和甲苯峰面积的RSD分别为1.6%和1.9%;
Result : In the repeatability test the RSD of ethanol and toluene are 1.6 % and 1.9 % , respectively .
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各杂质峰面积的日内最大RSD为17.0%,日间最大RSD为26.8%;
The values of intra-day and inter-day RSD of peak area were less than 17.0 % and 26 . 8 % respectively .
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结果:盐酸大观霉素在2.725~10.904μg范围内,进样量对数值与峰面积对数值呈良好的线性关系;
Results : In the range of 2.725 ~ 10.904 μ g , there was a good linear relationship between the log value of the inject quantities and the log value of the peak areas .
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采用GC-MS色质联用归一化峰面积计算方法,对原料绿茶样品和制成的普洱茶样品进行挥发性成分比较检测。
The GC-MS peal area calculation method was adopted to test the volatile aroma components in raw green tea samples and produced Pu-Er tea samples .
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方法通过水蒸气蒸馏,利用GC-MS进行分析,采用相对保留指数对化合物进行定性,用峰面积归一化法进行定量。
MethodsBy steam distillation and GC-MS analysis methods , chemical compounds were analyzed qualitatively using relative reservation index , and analyzed quantitatively by area normalization .
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相对分子质量分布结果表明,体系主要存在2肽到5肽的多肽类物质,HPLC图谱中对应峰面积约占总面积的76.99%。
The distribution of molecular weight measured by HPLC indicated that the peptides were mainly composed of 2-5 amino acid residues , and the corresponding peak area was 76.99 % on the total area .
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在甲醇比例在80%以下时,相同浓度MC-LR的HPLC检测响应值(峰面积)随着甲醇的比例的增加而缓慢增加。
When methanol content is below 80 % , HPLC response of MC-LR ( peak area ) will increase slowly as the methanol content increase .
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方法:以牛蒡子等中药不同炮制品的水浸出物含量、HPLC指纹图谱总峰面积为指标,对两种炮制方法进行比较研究。
Methods : two process methods were studied by the contents of the aqueous extract and the total peak area of HPLC fingerprint chromatogram of the TCM like Arctium lappa that processed in different ways .
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加入碳纳米管后,橡胶DSC曲线中的结晶熔融峰面积减少,交联反应放热峰变宽。
After the adding of carbon nanotubes , the area of crystal-melting peak in DSC curve of rubber decreases , and the width of exotherm peak belongs to cure reaction increases .
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用红外光谱峰面积比值法考察了抗氧剂ZDDP的降解规律;
The degradation of anti-oxidant , ZDDP , was investigated by peak area ratio method of IR .
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经表面活性剂十二烷基苯磺酸钠处理后的纯化CNT,内聚能下降,用差示扫描量热法(DSC)测定复合材料的DSC曲线表明,复合材料的结晶熔融峰面积增大,力学性能降低。
The cohesion of purified CNTs that was treated with surface-active agent reduced , the crystal-melting peak in DSC curve of rubber composites increased and mechanical properties of composites decreased .
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柱温:室温。结果:对甲氧基桂皮酸乙酯浓度与峰面积呈良好的线性关系,平均回收率为98.7%,RSD为0.57%。
Result : the concentration of ethyl ρ - methoxy cinnamate and peak area showed a good linearity relationship , the average recovery was98.7 % with RSD0.57 % .
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结果表明:各种氨基酸的保留时间(Rt)、相对峰面积(Ax/AI)的RSD均较满意,回收率为93.21%~114.24%;
The results showed that the RSD for remaining time and A_x / A_I of amino acids was satisfied , and the recoveries ranged from 93.21 % to 114.24 % .
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借助高效液相色谱(HPLC)技术,研究了130份对褐飞虱生物型Ⅱ具有不同抗性水平的水稻样品(26个品种)中13个次生物质含量(峰面积)的差异;
By the method of high-performance liquid chromatography ( HPLC ), this paper studied the contents of 13 secondary compounds from 130 samples of 26 rice varieties resistant to brown planthopper ( BPH ) Nilaparvata lugens biotype ⅱ .