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复方醋酸钠林格注射液中无水葡萄糖含量测定方法的建立及葡萄糖转化现象的探讨
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作者 章娟 石颖 +1 位作者 邱娟 李玮玲 《广东药科大学学报》 CAS 2023年第4期14-19,共6页
目的建立复方醋酸钠林格注射液中无水葡萄糖含量测定方法,并针对方法建立中发现的葡萄糖转化问题开展研究。方法采用氨基硅烷键合硅胶为填充剂的色谱柱;以乙腈-水-氨水(体积比75∶25∶0.1)为流动相;示差折光检测器检测;流速为1.0 mL/min... 目的建立复方醋酸钠林格注射液中无水葡萄糖含量测定方法,并针对方法建立中发现的葡萄糖转化问题开展研究。方法采用氨基硅烷键合硅胶为填充剂的色谱柱;以乙腈-水-氨水(体积比75∶25∶0.1)为流动相;示差折光检测器检测;流速为1.0 mL/min,柱温和检测池温度均为40℃。结果无水葡萄糖浓度在0.4125~8.249 mg/mL范围内线性关系良好(r=1.0000),定量限为101μg/L,平均回收率为100.5%,RSD为0.5%,采用该测定法发现样品中少量葡萄糖转化为果糖。结论建立的方法简单、准确、灵敏度高,不受葡萄糖转化现象的干扰,适用于复方醋酸钠林格注射液中无水葡萄糖的含量测定。 展开更多
关键词 复方醋酸钠林格注射液 无水葡萄糖 葡萄糖转化
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卵巢癌化疗与DNA含量测定的关系 被引量:1
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作者 孙丽君 刘丽萍 +2 位作者 张锚链 明祖谦 胡琼 《贵州医药》 CAS 2004年第5期403-405,共3页
目的研究卵巢上皮性癌细胞核DNA含量及其与卵巢癌化疗和预后的关系。方法应用自动图像分析系统对 2 5例术前未化疗及 2 0例术前化疗的卵巢癌组织的DNA指数 (DI)和DNA倍体组成进行测量和分析。结果卵巢癌细胞的DNA指数 (HI)在术前未化疗... 目的研究卵巢上皮性癌细胞核DNA含量及其与卵巢癌化疗和预后的关系。方法应用自动图像分析系统对 2 5例术前未化疗及 2 0例术前化疗的卵巢癌组织的DNA指数 (DI)和DNA倍体组成进行测量和分析。结果卵巢癌细胞的DNA指数 (HI)在术前未化疗组和术前化疗组中分别为 3 6 5 4 1± 1 30 6 3,2 2 0 2 0± 0 6 0 38,两组比较差异有极显著意义 (P <0 0 0 1 ) ;DNA倍体构成在化疗前后差异也有显著意义 (P <0 0 0 5 ) ,前者峰值体现于 >5C的非整倍体 ,后者主要位于 3C~ 4C的整倍体群中。结论 (1 )反映肿瘤细胞增殖状态的DNA指数和DNA倍体组成可能与卵巢癌的发生发展之间有一定的相关关系 ,他们可能反映了肿瘤细胞对抗肿瘤药物的敏感程度和耐受程度 ,在卵巢癌的病理诊断 ,恶性程度判定 ,疗效评价及生物学行为和预后评估中可能有重要价值。 (2 )卵巢癌术前化疗再结合手术和观测癌细胞DNA含量的变化 ,可能为选择术后化疗方案提供依据 ,为提高卵巢癌患者的 5年生存率 ,成为将来临床上对卵巢癌可能有前景的治疗手段之一。 展开更多
关键词 卵巢癌 化疗 DNA含量测 预后 细胞增殖 生物学行为
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门冬氨酸鸟氨酸原料药中的马来酸含量测定方法的改进 被引量:1
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作者 袁进烨 郑伟军 薛巧如 《广东化工》 CAS 2022年第23期250-252,236,共4页
目的:改进高效液相色谱法的色谱条件,准确、稳定地测定门冬氨酸鸟氨酸原料药中的马来酸含量。方法:采用高效液相色谱法,色谱柱:BIO-RAD Aminex-HPX-87H Ion Exclusion Column,流动相:0.004 mol/L硫酸溶液,检测波长:214 nm,柱温:30℃,流... 目的:改进高效液相色谱法的色谱条件,准确、稳定地测定门冬氨酸鸟氨酸原料药中的马来酸含量。方法:采用高效液相色谱法,色谱柱:BIO-RAD Aminex-HPX-87H Ion Exclusion Column,流动相:0.004 mol/L硫酸溶液,检测波长:214 nm,柱温:30℃,流速:0.6 mL/min,进样量:10 uL。结果:马来酸浓度在0.25922~4.14752 ug/mL范围内呈现良好的线性关系(R=0.9999);定量限为2.59 ng,检出限为0.78 ng;加样回收率的范围在97.85%~99.06%之间,相对标准偏差(RSD)为0.44%(n=9)。结论:此方法测定门冬氨酸鸟氨酸原料药中的马来酸,简便、准确、专属性强。 展开更多
关键词 高效液相色谱法 门冬氨酸鸟氨酸 马来酸 有机酸 含量测
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基于高光谱仪与光谱仪模型共享的海洋沉积物碳含量速测的研究
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作者 王子鉴 贾宗潮 +3 位作者 李雪莹 邱慧敏 侯广利 范萍萍 《光谱学与光谱分析》 SCIE EI CAS CSCD 北大核心 2023年第S01期111-112,共2页
实验室光谱仪和高光谱相机是两种获取物质光谱图像的仪器,两种仪器在实际应用方面各有优势且应用范围广泛。本文以光谱仪为主仪器,高光谱相机为从仪器,通过实验室光谱仪和高光谱相机之间的模型转移来实现对海洋沉积物碳含量快速预测。... 实验室光谱仪和高光谱相机是两种获取物质光谱图像的仪器,两种仪器在实际应用方面各有优势且应用范围广泛。本文以光谱仪为主仪器,高光谱相机为从仪器,通过实验室光谱仪和高光谱相机之间的模型转移来实现对海洋沉积物碳含量快速预测。结果显示,当使用数据标准化处理光谱数据,且校正集和检验集的比例为3∶1,使用PDS-DMP-S/B模型转移算法进行模型转移时,建模结果的R^(2)_(P)值为0.69,达到了比较理想的建模结果,为海洋沉积物碳含量从点到面的预测提供了一种新的、快捷的方法。 展开更多
关键词 可见-近红外光谱 海洋沉积物 高光谱仪 模型转移 含量
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用旋光法测定硝酸毛果芸香碱滴眼液的含量
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作者 吴雪梅 梁球 +1 位作者 黎奔 李丽清 《广东医学院学报》 1995年第2期169-170,共2页
用旋光法测定硝酸毛果芸香碱滴眼液的含量吴雪梅,梁球,黎奔,李丽清(广东医学院附属医院药剂科,湛江524001)硝酸毛果芸香碱为拟胆碱药,主要用于治疗青光眼及作阿托品的对抗剂。由于溶液不稳定,有效期短,所以多作为医院药... 用旋光法测定硝酸毛果芸香碱滴眼液的含量吴雪梅,梁球,黎奔,李丽清(广东医学院附属医院药剂科,湛江524001)硝酸毛果芸香碱为拟胆碱药,主要用于治疗青光眼及作阿托品的对抗剂。由于溶液不稳定,有效期短,所以多作为医院药剂科自配制剂使用。其含量测定常用碘... 展开更多
关键词 硝酸毛果芸香碱 滴眼液 旋光法 药物含量测
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苯酚硫酸法测定栀子水溶性多糖含量 被引量:33
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作者 刘立超 黄洪林 +1 位作者 赖正权 廖慧君 《安徽医药》 CAS 2005年第11期831-832,共2页
目的建立中药栀子中水溶性多糖含量的测定方法。方法用苯酚-浓硫酸显色法,以葡萄糖作为标准品,于490 nm处测吸光度。结果栀子中多糖含量为:4.96%,RSD=1.43%。结论该方法简便易行,结果稳定可靠,适合用于中药栀子中水溶性多糖含量的测定。
关键词 苯酚硫酸法 含量 栀子水溶性多糖 中药制剂 提取工艺
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高效液相色谱法测定复方沙棘颗粒中异鼠李素的含量 被引量:3
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作者 乌兴荣 《中国民族医药杂志》 2014年第3期56-57,共2页
目的:建立蒙成药复方沙棘颗粒的含量测定方法。方法:用高效液相色谱法对处方中沙棘的异鼠李素进行定量分析。采用Eclipse XDB-C18(4.6×250mm,5μm)柱、波长368nm、流动相为甲醇:水(54:46)、流速1mL/min、柱温:230C。结果:异鼠李素... 目的:建立蒙成药复方沙棘颗粒的含量测定方法。方法:用高效液相色谱法对处方中沙棘的异鼠李素进行定量分析。采用Eclipse XDB-C18(4.6×250mm,5μm)柱、波长368nm、流动相为甲醇:水(54:46)、流速1mL/min、柱温:230C。结果:异鼠李素在4.008-24.048mg范围内呈线性关系(r=0.9997),平均回收率为99.27%(RSD=1.91%)。 展开更多
关键词 复方沙棘颗粒 高效液相色谱法 异鼠李素 含量测
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HPLC法测定消痔片中丹皮酚的含量
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作者 张海英 《辽宁中医杂志》 CAS 北大核心 2007年第1期81-81,共1页
目的:对消痔片中丹皮酚的含量,建立一种测定方法。方法:采用HPLC法进行含量测定。结论:牡丹皮提取方法选择甲醇溶液作为提取溶剂,选择超声提取时间30m in为宜。
关键词 丹皮酚 消痔片 含量测 HPLC法
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间接碘量法测定胆矾中铜含量的微型化
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作者 谢音 陈一先 《数理医药学杂志》 2012年第5期582-584,共3页
利用自己研制的微型滴定装置(WDCOⅡ型微型滴定装置),采用间接碘量法法测定胆矾中铜含量,操作简便快速,尤其是将测定微型化大大地降低了该实验的成本。对于"绿色化学"具有重要的实际意义。将常规滴定与微型滴定的平行结果进... 利用自己研制的微型滴定装置(WDCOⅡ型微型滴定装置),采用间接碘量法法测定胆矾中铜含量,操作简便快速,尤其是将测定微型化大大地降低了该实验的成本。对于"绿色化学"具有重要的实际意义。将常规滴定与微型滴定的平行结果进行了比较,得到的结果非常接近,且均具有较好的精密度。证明WDCOⅡ型微型滴定装置具有较好的操作性能,同时也证明了该实验微型化具有可行性和必要性。 展开更多
关键词 间接碘量法含量 微型实验 WDCOⅡ型微型滴定装置
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测土配方施肥对湿地松生长与养分含量及其土壤肥力的影响 被引量:4
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作者 杨硕知 王晓明 +2 位作者 曾慧杰 李永欣 蔡能 《湖南林业科技》 2012年第5期43-46,共4页
选择4年生湿地松优良家系试验林,通过测土配方施肥,研究其对湿地松生长与叶片、枝条养分含量及其土壤肥力的影响。结果表明:施肥后第2年,土壤全P含量与湿地松树高及胸径生长呈现极显著正相关,其数学模型分别为:y=-5.944 4 x+1.318 9、y=... 选择4年生湿地松优良家系试验林,通过测土配方施肥,研究其对湿地松生长与叶片、枝条养分含量及其土壤肥力的影响。结果表明:施肥后第2年,土壤全P含量与湿地松树高及胸径生长呈现极显著正相关,其数学模型分别为:y=-5.944 4 x+1.318 9、y=-7.500 0 x+2.700 0;施肥后土壤中速效K含量与叶片中全K含量呈现极显著正相关,其数学模型为:y=0.010 8 x-0.163 3;速效K含量与湿地松树高及胸径生长,其数学模型分别为:y=-0.032 8 x+1.513 3、y=-0.047 4 x+3.002 9;土壤中全N增长与湿地松叶片全N含量增长均呈现显著正相关,其数学模型为:y=7.016 1 x+0.162 1。湿地松平均树高与胸径相较于未施肥的对照组增幅分别达11%与13%以上,其差异达到了极显著水平。 展开更多
关键词 湿地松 土配方施肥 生长量 养分含量 土壤肥力 数学模型
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四大滴定中被测组分含量计算通用BASIC程序
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作者 王圆朝 《湖北科技学院学报》 1990年第2期62-64,共3页
本文给出在综合化学分析中四大滴定共性后,依据分析中常规数据处理方法而设计的通用BASIC计算程序.
关键词 滴定 BASIC程序 组分含量
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电感耦合光谱法测定钙矽锰中Ca、Mn、Al含量
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作者 许红霞 《当代化工研究》 2021年第10期146-147,共2页
钙矽锰是一种优良的脱氧剂,脱硫及去除夹杂物质能力强,且熔点的,融化速度快,流动性好,可有效缩短精炼时间,降低精炼电耗。在不锈钢铸造过程中可明显降低钢水中氧元素和硫元素的含量,并净化钢中夹杂物,钙矽锰比硅钙合金和硅铁的脱氧效果... 钙矽锰是一种优良的脱氧剂,脱硫及去除夹杂物质能力强,且熔点的,融化速度快,流动性好,可有效缩短精炼时间,降低精炼电耗。在不锈钢铸造过程中可明显降低钢水中氧元素和硫元素的含量,并净化钢中夹杂物,钙矽锰比硅钙合金和硅铁的脱氧效果更理想,成本低。此外,使用中无尘,无火焰,安全性和环保性好。钙矽锰已成为一种新型脱氧剂,通常钙,铝,锰的分析方法都采用湿式化学法,湿式化学法繁杂且分析周期长,现用电感耦合等离子发射光谱法测定,其具有线性范围宽,干扰少等优点。 展开更多
关键词 电感耦合光谱法 钙矽锰合金 同时钙、锰、铝含量
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Determination of Isoflavone from Soybean Lines Cultivated in Jilin Province and Correlation Analysis between Isoflavone Content and Soybean Quality 被引量:29
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作者 宋向东 张之鑫 +1 位作者 王巍巍 富健 《Agricultural Science & Technology》 CAS 2010年第1期48-50,共3页
[Objective]The aim of this study was to set up a high performance liquid chromatography for rapid determination of isoflavones from soybean and analyze the correlation between isofalvone content and protein or fat con... [Objective]The aim of this study was to set up a high performance liquid chromatography for rapid determination of isoflavones from soybean and analyze the correlation between isofalvone content and protein or fat content. [Method]The isoflavones were firstly extracted by 80% methanol and then hydrolyzed at 100 ℃. The chromatographic separation adopted a reversed-phase C18 analytical column with binary high-pressure gradient elution,while its analysis time was 25 min and column temperature was 40 ℃. The diode array detector was used for monitoring with wavelength of 260 nm. The correlation between isofalvone content and protein or fat content was analyzed by data processing system Origin 6.0. [Result]The high performance liquid chromatograph for determination of isoflavones from soybean was verified to be accurate and reliable by methodology. The isoflavones of 85 soybean lines cultivated in Jilin Province were determined,and the results primarily showed the characters and ranges of isoflavones from soybean lines cultivated in Jilin Province,while the isoflavone content of soybeans ranged from 2.29 to 4.89 mg/g,and the average content was 3.36 mg/g. The isoflavone content of 5 soybean lines exceeded 4 mg/g,while there was a remarkably negative correlation between isoflavone content and protein content,and there was no significant positive correlation between isoflavone content and fat content. [Conclusion]The isoflavone content of soybean lines cultivated in Jilin Province is higher,so it is feasible for breeding the soybean lines with high isoflavone content and fat contetnt. 展开更多
关键词 Cultivated soybean Isoflavone content DETERMINATION Protein content Fat content
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HPLC Determination of Harpagoside and Cinnamic Acid in Radix Scrophulariae 被引量:5
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作者 谢丽华 刘洪宇 +4 位作者 徐秉玖 王璇 王建华 徐风 蔡少青 《Journal of Chinese Pharmaceutical Sciences》 CAS 2001年第3期148-151,共4页
A gradient HPLC method was established for the determination of harpagoside and cinnamic acid in Radix Scrophulariae (Xuanshen) and a proposition was put forward for the lowest content of the characteristic and active... A gradient HPLC method was established for the determination of harpagoside and cinnamic acid in Radix Scrophulariae (Xuanshen) and a proposition was put forward for the lowest content of the characteristic and active constituent (harpagoside) for qualified Radix Scrophulariae. The experimental conditions were as follows: Ultrasphere ODS column (250 mm 4.6 mm, 5 mm), mobile phase: acetonitrile-water (containing 1.0% acetic acid) (20:8050:50) (20 min), flow-rate 1 mLmin-1, room temperature, detection wavelength 278 nm. Twenty-eight samples of Xuan-shen (Radix Scrophulariae) from different districts of China were analyzed and the contents of harpagoside and cinnamic acid in Xuan-shen were 0.041~0.244% and 0.012~0.068% respectively. The recoveries (RSD)% were 97.13(0.80)% for harpagoside and 99.38(0.51)% for cinnamic acid. The method is simple and accurate. It can be used for the quality control of Radix Scrophulariae. We propose that the content of harpagoside in qualified Radix Scrophularia should be no less than 0.05%. 展开更多
关键词 Scrophularia ningpoensis HARPAGOSIDE Cinnamic acid HPLC
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Estimation of Biological Nitrogen Fixation Capacity by Sugarcane Using 15N 被引量:7
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作者 杨荣仲 谭裕模 +2 位作者 桂意云 谭芳 李杨瑞 《Agricultural Science & Technology》 CAS 2008年第2期154-156,共3页
[ Objective] The study aimed to reveal the biological nitrogen fixation capacity by sugarcane from Brazil under the ecological conditions of Guangxi, and to provide reference for study on the biological nitrogen fixat... [ Objective] The study aimed to reveal the biological nitrogen fixation capacity by sugarcane from Brazil under the ecological conditions of Guangxi, and to provide reference for study on the biological nitrogen fixation capacity by sugarcane and related generalization and application. [ Method] The ^15N isotopic fertilizer was solely applied on plants of three sugarcane cultivars planted in greenhouse with no other fertilizer forms applied, meanwhile virus-free stem seedling was regarded as control, to measure their biological nitrogen fixation capacity using ^15N isotope. [ Result ] The nitrogen fixation rate of B8 from Brazil reached 26.91%, while Guitang 11 and RIC16 presented no or poor nitrogen fixation capacity. [ Conclusion] The sugarcane eultivar B8 from Brazil showed some nitrogen fixation capacity under the ecological conditions of Guangxi. 展开更多
关键词 SUGARCANE Biological nitrogen fixation ^15N isotope
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Simultaneous Determination of Tetramethylpyrazine and Aspirin in a New Compound Formulation by Liquid Chromatography 被引量:2
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作者 王鹏 齐美玲 +1 位作者 周莉 方林 《Journal of Chinese Pharmaceutical Sciences》 CAS 2004年第1期58-62,共5页
Aim To establish a reversed-phase liquid chromatographic (LC) method forsimultaneous determination of tetramethylpyrazine (TMP) and aspirin in a new compound formulation.Methods Chromatographic separation of the two d... Aim To establish a reversed-phase liquid chromatographic (LC) method forsimultaneous determination of tetramethylpyrazine (TMP) and aspirin in a new compound formulation.Methods Chromatographic separation of the two drugs was achieved on a Diamonsil C_(18) column, usinga binary mixture of methanol-1.5% acetic acid (35:65, V/V, pH = 3.1) as mobile phase at a flow rateof 1.0 mL·min^(-1). Results Separation was completed in less than 12 min. Benzoic acid was used asthe internal standard. Recoveries at levels corresponding to 80 % to 120 % of the label claim ofthe formulation ranged from 99.6 to 100.3 % for aspirin and from 99.9 to 101.3% for TMP. The linearrange was 12.6 - 150.9 μg·mL^(-1)(r= 0.9997, n = 5) for aspirin and 25.0- 300.0 μg·mL^(-1) (r =0.9999, n = 5) for TMP. Conclusion The method developed can be used for the simultaneousdetermination of TMP and aspirin in pharmaceutical preparations. 展开更多
关键词 liquid chromatography TETRAMETHYLPYRAZINE ASPIRIN ASSAY
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Determination of contents of 10-Hydroxycamptothecin in Camptotheca acuminata by high-performance liquid chromatogram 被引量:5
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作者 马梅芳 于涛 +2 位作者 戴绍军 王洋 阎秀峰 《Journal of Forestry Research》 SCIE CAS CSCD 2002年第2期144-146,165,共3页
The determination method of 10-hydroxycamptothecin in Camptotheca acuminata fruits by high-performance liquid chromatogram (HPLC) was studied. The HPLC analysis was performed on a HIQ sil C18(4.6×250 mm) column w... The determination method of 10-hydroxycamptothecin in Camptotheca acuminata fruits by high-performance liquid chromatogram (HPLC) was studied. The HPLC analysis was performed on a HIQ sil C18(4.6×250 mm) column with mobile phase of acetonitrilewater (3:7, V:V), flow rate 1 mLmin-1 and UV detective wavelength 266 nm. Extracting 10-hydroxycamptothecin by ultrasonic method from fruits of C. acuminata to prepare samples for analysis was systematically discussed. The optimal extraction condition was carried out by 60% alcohol solution at 60℃ for 50 minutes. 展开更多
关键词 HYDROXYCAMPTOTHECIN Camptotheca acuminata HPLC ultrasonic extraction method
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Determination of Eleutheroside B and E in Acanthopanax Preparations by High-P erformance Liquid Chromatography with Solid-Phase Extraction 被引量:6
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作者 胡芳弟 封士兰 +2 位作者 赵健雄 陈立仁 徐静汶 《Journal of Chinese Pharmaceutical Sciences》 CAS 2005年第1期51-55,共5页
Aim An HPLC method for analyzing eleutheroside B (ELU B) and eleutheroside E(ELU E) , two of the main active substances of Acanthopanax preparations were studied. Methods Thesamples were analyzed on a kromasil ODS col... Aim An HPLC method for analyzing eleutheroside B (ELU B) and eleutheroside E(ELU E) , two of the main active substances of Acanthopanax preparations were studied. Methods Thesamples were analyzed on a kromasil ODS column with water-acetonitrile as a gradient mobile phase.The flow rate was 0.8 mL·min^(-1) and detecting wavelengths were 206 nm for ELU B, 220 nm for ELUE, solid phase extraction (SPE) and internal standard-salicin were selected. Results The recoveriesof Acanthopanax tablets and injection were 90.4% - 96.8% and 96.4% - 99.8% for ELU B, 87.7% -93.3%and 95.7% - 98.5% for ELU E, respectively. The linear ranges were 4.45 - 22.25 μg· mL^(-1) (r =0.999 8) and 5.11 - 25.55 μg·mL^(-1) ( r = 0.999 7) respectively. Conclusion This method can savethe time for cleaning the chromatographic system and improve sensitivity for Acanthopanaxpreparations , thus providing a way to evaluate the quality of Acanthopanax preparations. 展开更多
关键词 eleutherosides acanthopanax preparations HPLC solid phase extraction
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Determination of 1-Phenylpropanol in Raw Material and Preparations by High-Performance Liquid Chromatograph 被引量:1
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作者 邓意辉 吴红兵 +3 位作者 卢懿 周新羽 王宁 赵静 《Journal of Chinese Pharmaceutical Sciences》 CAS 2006年第1期45-50,共6页
Ahn To establish an RP-HPLC method for determination of content of 1-phenylpropanol in its raw material and preparations. Methods Chromatography was carried out on a Dikma DiamonsilTM ODS column, using a mobile phase ... Ahn To establish an RP-HPLC method for determination of content of 1-phenylpropanol in its raw material and preparations. Methods Chromatography was carried out on a Dikma DiamonsilTM ODS column, using a mobile phase of methanol-water (55:45) with a flow rate at 1.0 mL·min^-1. The detection wavelength was 258 nm. Results Under the chromatographic condition, the peaks of 1-phenylpropanol and its related impurities separated completely; noninterference between the principal agent and adjuvants in preparations was performed. The calibration curve was linear over the range of 250 - 750μg·mL^-1 with the correlation coefficient of 0. 999 9. The average recovery was 100.2% ( RSD = 1.35% ). Conclusion This method is simple, rapid, accurate, specific, and can be used to detect the content and related compounds of phenylpropanol in its raw material and preparations. 展开更多
关键词 phenylpropanol RP-HPLC DETERMINATION
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Determination of the Trace Element Contents in Plants Using Atomic Absorption Spectrophotometer 被引量:37
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作者 高淑云 《Agricultural Science & Technology》 CAS 2008年第2期6-9,共4页
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
关键词 Trace elements GFT AAS BURDOCK GINKGO GARLIC
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