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- The characteristic peaks of appropriate adulterant, were identified accordingly. 比较它们的指纹图,从中鉴别出掺假物的特征峰。
- The expanded graphite has many small weak peaks from the different intercalating space except its characteristic peak. 膨胀石墨的结构除了保留强度很弱的石墨特征峰外,还有大量强度极其微弱、层间距大小不一的峰;
- The characteristic peaks were evaluated by repeatability and the stability of different batch of tobacco flavor. 结果显示,重复性实验的相对标准偏差小于不同批次香精的质量波动;
- It was proved that PLA-CEZ contained the characteristic peaks of cefamezin and polylactic acid by FT-IR. 红外光谱图谱显示微球中有CEZ和PLA两种成分的特征峰。
- The results showed that when hogwash oil into edible oil upwards of 10%, the characteristic peak of cholesterol could be observed obviously. 利用极性毛细管色谱柱可将油脂中的胆固醇和植物甾醇很好地分离,从而可鉴别油样中是否混有地沟油。
- RESULTS: The fingerprint of ultramicro decoction piece of Radix paeoniae Alba was composed of 20 peaks,among which there were 10 characteristic peaks. 结果:建立了白芍超微饮片的高效液相指纹图谱,有色谱峰约20个,其中共有峰10个。
- Results: The Fingerprint of ultramicro decoction piece of Rhizoma Cyperi was composed of 50 peaks,containing 10 characteristic peaks. 结果:建立了香附超微饮片的气相色谱指纹图谱,有色谱峰约50个,其中共有峰10个。
- Objective: Correlative characteristic peaks of HPLC selected by rough sets were employed to identify the habitats of Radix Astragali. 目的:采用粗糙集方法选取相关特征色谱峰用于黄芪药材的产地鉴别。
- Characteristic peak of its total saponins in the UV-VIS spectrum was identified. 经光谱扫描发现其总皂苷提取液经显色后在可见区具有明显的吸收峰。
- It is effective and useful method to determinate characteristic peak of IR by statistic large spectrum information. 说明对大量谱图信息进行统计分析确定基团的特征峰,是一种行之有效的方法。
- The relative reten time andrelative peak area were selected as the assaying fingerprint chroma togram.Established by HPLC-DAD ,6 characteristic peaks were identified. 应用HPLC-DAD技术建立了沙枣花挥发油指纹图谱,以相对保留时间和相对峰面积为指标,确定了6个特征峰。
- METHODS:Using Fourier transform infrared spectrometry(FTIR),the characteristic peaks of fingerprints of samples from 12 habitats were recognized and compared. 方法:采用傅里叶变换红外光谱仪测定12个不同产地的样品,对所获得的指纹图谱进行特征峰指认和对比分析。
- Results The fingerprints was consisted of 50 color peaks in which there were 10 characteristic peaks, and the mean value of communal peak RSD was 0.81%. 结果所建立的挥发油指纹图谱,有色谱峰约50个,其中特征峰10个。共有峰的相对保留时间RSD的平均值为0.;81%25。
- Results: The characteristic peaks appeared repeatedly in Fructus psoraleae-containing serum, and the retention time was the same as that in the methanol extract. 结果:含药血清有重复出现的特征峰,与甲醇提取液的图谱对比在相应保留时间出峰,紫外光谱类似。
- In FTIR spectrogram of scissored PVP or PNIPA, characteristic peak of C=S double bond were discovered.It is to say that the patch of RAFT agent on the hairy chains. 同时,通过水解后从微球表面“剪裁”下来的壳层高分子红外分析表明,高分子链段中均含有碳硫基团,即证明有RAFT试剂的“碎片”存在。
- This paper introduces a method which determinate the characteristic peak of IR through substructure searching, common substructure spreading, similarity index calculating. 采用子结构检索、公共子结构寻找和相似指数计算的方法研究了红外特征峰与对应子结构的相互关系。
- The adulteration of the non- fluorescence lanthanum or gadolinium ions can enhance the fluorescence intensity of the complexes of europium,but only have little influence on the locations of the fluorescence characteristic peaks. La3+、Gd3+以不同比例掺杂Eu~(3+)配合物,在紫外光的激发下,Eu~(3+)荧光发射峰位置只有微小变化,但对其荧光发射强度影响较大。
- The running buffer was 0.lmol/L borate, 0.lmol/LSDS, pH 8.5, and the separation voltage was 25kV. Four common peaks can be found in the electropherograms of Cassia seeds of six species, the characteristic peaks can also be observed. 电泳分离缓冲液为0.;1mol/LSDS,0
- There were 8 characteristic peaks that constituted fingerprint characters of HPLC fingerprints of betaine, and betaines of Fructus Lycii from different habitats were quite different in content. 结果表明:8个特征峰构成了宁夏枸杞甜菜碱提取物的色谱指纹图谱,不同产地、不同品种的枸杞样品甜菜碱提取物指纹图谱存在差异;
- Results: Triethylamine could be separated well by this gas chromatography/mass spectrometry method, and determined exactly by mass range 58, 86, 101 as characteristic peaks in the spectrum. 结果:三乙胺在本次实验设置的色谱条件和质谱条件下能与其他有机物良好分离,在质谱图上可通过三乙胺的86,58,30,101等几个特征离子峰进行准确定性。