The aim of the study is to investigate the contents of trace element Se, Cd, Pb in three plants including burdock, ginkgol and garlic via graphite furnace atomic absorption and standard addition method. The results sh...The aim of the study is to investigate the contents of trace element Se, Cd, Pb in three plants including burdock, ginkgol and garlic via graphite furnace atomic absorption and standard addition method. The results show that Se in burdock stem, skin and leaf are 32.40, 48.63, 38.10 μg/g, respectively; Cd in burdock stem, skin and leaf are 0. 160 0, 0. 300 0, 0. 140 0 μg/g, respectively; Cd in burdock stem, skin and leaf are 2. 020, 3. 960, 2. 410 μg/g, respectively. In the ginkgo and ginko leaf, Se contents are 17.63 and 16.91 μg/g, respectively ; for Cd are 0. 181 0 and 0.2020μg/g, respectively ; for Pb are 3. 572 and 4. 021 μg/g, respectively. In garlic, Se, Cd and Pb are 73. 900 0, 6. 900 0 and 0. 390 0, respectively. All the standard deviations of measured results are below 2.3%, recovery rate are from 99% to 101%.展开更多
[Objective]The aim was to analyze the primary speciation of 6 microelements in Glycyrrhiza uralensis Fisch. and provide theoretical basis for explaining pharmacodynamic principle of liquorice and discussing quality co...[Objective]The aim was to analyze the primary speciation of 6 microelements in Glycyrrhiza uralensis Fisch. and provide theoretical basis for explaining pharmacodynamic principle of liquorice and discussing quality control of liquorice planting. [Method]The 6 elements Cu,Zn,Ca,Fe,Mg and Mn in roots of G.uralensis were extracted based on traditional decoction method and were separated into water-soluble state and suspension state by micro porous filtering film. The elements in water-soluble state were detected by flame atomic adsorption spectrophotometry （FAAS）. [Result]The results showed that extractive rates of the elements were in the range of 1.71%-60.06%,and immerse-residue ratio in 0.018 3-1.682 0; the results also indicated that the immerse-residue ratio of Zn was biggest （1.68）,Zn played an important medical role and might be considered as the best characteristic element in G.uralensis; the recoveries of the elements were ranged from 95.72% to 103.15% and relative standard deviations （RSD） were less than 2.38%. [Conclusion]Because of its high accuracy,FAAS method is feasible for analyzing primary speciation of microelements in G.uralensis.展开更多
[Objective] This study aimed to identify red pigment of Panax notoginseng fruits and explore the correlation between pigment content and total saponins of the fruits. [Method] The red pigment of Panax notoginseng frui...[Objective] This study aimed to identify red pigment of Panax notoginseng fruits and explore the correlation between pigment content and total saponins of the fruits. [Method] The red pigment of Panax notoginseng fruits was preliminarily identi- fied with specific color reactions and UV-vis spectra, and the contents of the pigment and total saponins were determined via spectrophotometry. [Result] The red hues of the fruits were contributed by anthocyanins and/or the anthocyanidins. The contents of anthocyanins and total saponins of the fruits both decreased along with thinning of the red hues. The content difference of the anthocyanins in fruits with different red hues reached extremely significant level, but that of total saponins just reached significant level. [Conclusion] The red pigment of P. notoginseng fruits is anthocyanins which are of extremely significant positive correlation with total saponins in contents.展开更多
In the study, the contents of 5 trace elements including Fe, Cu, Mg, Mn and Ca were directly analyzed by flame atomic absorption spectroscopy in Gu- oshangye. The sample was subjected to microwave digestion with HNO3 ...In the study, the contents of 5 trace elements including Fe, Cu, Mg, Mn and Ca were directly analyzed by flame atomic absorption spectroscopy in Gu- oshangye. The sample was subjected to microwave digestion with HNO3 and H2O2, and detected by the standard curve method. The results showed that Guoshangye contained abundant trace elements which rates of these trace elements were in the curacy and satisfactory. were necessary for human. The recovery range of 96%-103%. The method is ac-展开更多
目的基于胸部CT图像,探讨成年男性胸椎椎体CT值评估骨质疏松(osteoporosis,OP)的价值。方法回顾性分析山西白求恩医院2020年9-11月均接受胸部螺旋CT扫描和双能X线光吸收法(dual energy X ray absorptiometry,DXA)骨密度(bone mineral de...目的基于胸部CT图像,探讨成年男性胸椎椎体CT值评估骨质疏松(osteoporosis,OP)的价值。方法回顾性分析山西白求恩医院2020年9-11月均接受胸部螺旋CT扫描和双能X线光吸收法(dual energy X ray absorptiometry,DXA)骨密度(bone mineral density,BMD)检查(两项检查时间差为1个月内),男性患者93例,年龄22~96岁,平均年龄(61±15)岁。利用DXA作为参考标准,通过测量胸1至胸12椎体CT值来探讨胸椎椎体CT值评估BMD的可行性并确定CT值诊断骨量减少或骨质疏松的最佳测量椎体。所有研究对象均采集一般临床资料及利用西门子医疗系统有限公司(AI-Rad Companion Chest CT,原型机ver.4.3.3)软件测量胸1椎体至胸12椎体的CT值。以DXA测量的骨密度T-score为标准,将93例患者分为骨密度正常组(n=47)、骨量减少组(n=30)和骨质疏松组(n=16),采用方差分析分别比较各组间胸1至胸12各椎体CT均值的差异;用Pearson相关分析每一椎体CT值与DXA测得的腰椎BMD的相关性;采用受试者工作特征(ROC)曲线分析胸1至胸12椎体CT值对骨质疏松的诊断价值从而确定评估骨质疏松的最佳椎体,并且通过计算约登指数来确定最佳椎体评估骨量减少或骨质疏松的临界CT值。结果骨质疏松组胸1椎体至胸12各椎体的CT均值明显低于骨密度正常组及骨量减少组(P<0.05)。胸1至胸12椎体CT值与DXA测得的T-score均呈正相关(r>0,P<0.05),且胸9椎体的相关系数最大(0.617)。胸9椎体的AUC值最大,并且胸9椎体CT值下降至153 HU以下,高度提示骨量减少或骨质疏松。结论基于患者胸部CT扫描图像测量的胸椎椎体CT值,可以对OP患者进行早期识别及定量评估,为改善患者生活质量和预后提供更多的支撑信息。展开更多
基金School Fund of Xuzhou Institute of Technology (XKY200614)~~
文摘The aim of the study is to investigate the contents of trace element Se, Cd, Pb in three plants including burdock, ginkgol and garlic via graphite furnace atomic absorption and standard addition method. The results show that Se in burdock stem, skin and leaf are 32.40, 48.63, 38.10 μg/g, respectively; Cd in burdock stem, skin and leaf are 0. 160 0, 0. 300 0, 0. 140 0 μg/g, respectively; Cd in burdock stem, skin and leaf are 2. 020, 3. 960, 2. 410 μg/g, respectively. In the ginkgo and ginko leaf, Se contents are 17.63 and 16.91 μg/g, respectively ; for Cd are 0. 181 0 and 0.2020μg/g, respectively ; for Pb are 3. 572 and 4. 021 μg/g, respectively. In garlic, Se, Cd and Pb are 73. 900 0, 6. 900 0 and 0. 390 0, respectively. All the standard deviations of measured results are below 2.3%, recovery rate are from 99% to 101%.
基金Supported by National Natural Science Foundation of China(30600806)Science and Technology Project of Higher Education of Ningxia Hui Autonomous Region (NJ0626)~~
文摘[Objective]The aim was to analyze the primary speciation of 6 microelements in Glycyrrhiza uralensis Fisch. and provide theoretical basis for explaining pharmacodynamic principle of liquorice and discussing quality control of liquorice planting. [Method]The 6 elements Cu,Zn,Ca,Fe,Mg and Mn in roots of G.uralensis were extracted based on traditional decoction method and were separated into water-soluble state and suspension state by micro porous filtering film. The elements in water-soluble state were detected by flame atomic adsorption spectrophotometry （FAAS）. [Result]The results showed that extractive rates of the elements were in the range of 1.71%-60.06%,and immerse-residue ratio in 0.018 3-1.682 0; the results also indicated that the immerse-residue ratio of Zn was biggest （1.68）,Zn played an important medical role and might be considered as the best characteristic element in G.uralensis; the recoveries of the elements were ranged from 95.72% to 103.15% and relative standard deviations （RSD） were less than 2.38%. [Conclusion]Because of its high accuracy,FAAS method is feasible for analyzing primary speciation of microelements in G.uralensis.
基金Supported by the National Natural Science Foundation of China(No.31060045,31260091)~~
文摘[Objective] This study aimed to identify red pigment of Panax notoginseng fruits and explore the correlation between pigment content and total saponins of the fruits. [Method] The red pigment of Panax notoginseng fruits was preliminarily identi- fied with specific color reactions and UV-vis spectra, and the contents of the pigment and total saponins were determined via spectrophotometry. [Result] The red hues of the fruits were contributed by anthocyanins and/or the anthocyanidins. The contents of anthocyanins and total saponins of the fruits both decreased along with thinning of the red hues. The content difference of the anthocyanins in fruits with different red hues reached extremely significant level, but that of total saponins just reached significant level. [Conclusion] The red pigment of P. notoginseng fruits is anthocyanins which are of extremely significant positive correlation with total saponins in contents.
基金Supported by the Research Project for Postgraduate Students of Minzu University of China in 2015Scientific and Technological Cooperation Planning Project of Guizhou Province(QKJ LH[2015]7265)~~
文摘In the study, the contents of 5 trace elements including Fe, Cu, Mg, Mn and Ca were directly analyzed by flame atomic absorption spectroscopy in Gu- oshangye. The sample was subjected to microwave digestion with HNO3 and H2O2, and detected by the standard curve method. The results showed that Guoshangye contained abundant trace elements which rates of these trace elements were in the curacy and satisfactory. were necessary for human. The recovery range of 96%-103%. The method is ac-
文摘目的基于胸部CT图像,探讨成年男性胸椎椎体CT值评估骨质疏松(osteoporosis,OP)的价值。方法回顾性分析山西白求恩医院2020年9-11月均接受胸部螺旋CT扫描和双能X线光吸收法(dual energy X ray absorptiometry,DXA)骨密度(bone mineral density,BMD)检查(两项检查时间差为1个月内),男性患者93例,年龄22~96岁,平均年龄(61±15)岁。利用DXA作为参考标准,通过测量胸1至胸12椎体CT值来探讨胸椎椎体CT值评估BMD的可行性并确定CT值诊断骨量减少或骨质疏松的最佳测量椎体。所有研究对象均采集一般临床资料及利用西门子医疗系统有限公司(AI-Rad Companion Chest CT,原型机ver.4.3.3)软件测量胸1椎体至胸12椎体的CT值。以DXA测量的骨密度T-score为标准,将93例患者分为骨密度正常组(n=47)、骨量减少组(n=30)和骨质疏松组(n=16),采用方差分析分别比较各组间胸1至胸12各椎体CT均值的差异;用Pearson相关分析每一椎体CT值与DXA测得的腰椎BMD的相关性;采用受试者工作特征(ROC)曲线分析胸1至胸12椎体CT值对骨质疏松的诊断价值从而确定评估骨质疏松的最佳椎体,并且通过计算约登指数来确定最佳椎体评估骨量减少或骨质疏松的临界CT值。结果骨质疏松组胸1椎体至胸12各椎体的CT均值明显低于骨密度正常组及骨量减少组(P<0.05)。胸1至胸12椎体CT值与DXA测得的T-score均呈正相关(r>0,P<0.05),且胸9椎体的相关系数最大(0.617)。胸9椎体的AUC值最大,并且胸9椎体CT值下降至153 HU以下,高度提示骨量减少或骨质疏松。结论基于患者胸部CT扫描图像测量的胸椎椎体CT值,可以对OP患者进行早期识别及定量评估,为改善患者生活质量和预后提供更多的支撑信息。
