[Objectives]To detect content of Pb,Cd,Hg,As,Cu,Zn,and Cr in Lysimachia christinae,and to analyze the pollution level.[Methods]Seven kinds of elements in L.christinae were determined by Inductively coupled plasma mass...[Objectives]To detect content of Pb,Cd,Hg,As,Cu,Zn,and Cr in Lysimachia christinae,and to analyze the pollution level.[Methods]Seven kinds of elements in L.christinae were determined by Inductively coupled plasma mass spectrometry and analyzed by single index and comprehensive index.[Results]The seven heavy metal elements showed good linearity in their respective concentration ranges.The recoveries of the samples were 84.5%-109.5%,and the RSD values were 2.30%-5.10%.Comparing the measured results of heavy metal elements with the limit values stipulated in the 2020 edition of the Chinese Pharmacopoeia and other standards,the Cr element in 19 batches of samples exceeded the standard,and the Zn element in 7 batches of samples exceeded the standard.The exceeding rates were 100.0%and 36.8%,respectively;the content of other heavy metal elements did not exceed the standard.The order of individual index from large to small was Cr,Zn,Cd,Hg,Cu,As,and Pb,and the average comprehensive pollution level was mild pollution and above.[Conclusions]L.christinae was mainly polluted by Cr,followed by Zn;this study can provide basic data for drafting of the limit standard for heavy metal elements in L.christinae.展开更多
6月1-30日德国雷司令周Riesling Weeks Hong Kong一年一度的第五届香港雷司令周（Riesling Weeks Hong Kong）将于6月举行,为期一个月。活动重点是6月2日在湾仔香港万丽海景酒店举行的雷司令周开幕仪式（Riesling Weeks Kick Off Celebr...6月1-30日德国雷司令周Riesling Weeks Hong Kong一年一度的第五届香港雷司令周（Riesling Weeks Hong Kong）将于6月举行,为期一个月。活动重点是6月2日在湾仔香港万丽海景酒店举行的雷司令周开幕仪式（Riesling Weeks Kick Off Celebration）,由来自弗兰肯（Franken）产区的德国葡萄酒公主Christina Schneider揭幕。到场嘉宾可品尝150多款德国佳酿、精美国际及德国小食拼盘,展开更多
Stick-lets by Christina Kazakia美国设计师Christina Kazakia为了鼓励孩子们走出家门,和大自然友好相处,设计了这一款五颜六色的连接环。连接环材料采用的是有弹性的硅胶,健康安全,可以自由伸缩,固定住枝条,木棍等。通过他们,孩子们...Stick-lets by Christina Kazakia美国设计师Christina Kazakia为了鼓励孩子们走出家门,和大自然友好相处,设计了这一款五颜六色的连接环。连接环材料采用的是有弹性的硅胶,健康安全,可以自由伸缩,固定住枝条,木棍等。通过他们,孩子们可以搭建起自己想象中的建筑或巢穴。为了吸引孩子们的兴趣,她特意选用了五彩缤纷的颜色。展开更多
School A｜Anthony的妈妈2016年10月初,美国新英格兰地区,当地凌晨3点半：明天宝贝儿的第一场面试,我这当妈的从坐上飞机就开始紧张。同日早上8点半：我看见儿子默默地走在导游旁边!哎呀!怎么就不和导游多套套近乎呢？我都告诉他几遍了...School A｜Anthony的妈妈2016年10月初,美国新英格兰地区,当地凌晨3点半：明天宝贝儿的第一场面试,我这当妈的从坐上飞机就开始紧张。同日早上8点半：我看见儿子默默地走在导游旁边!哎呀!怎么就不和导游多套套近乎呢？我都告诉他几遍了要多问问题,说话声音要响亮,结果他……唉,真急人!展开更多
文摘贾菲(Benard Jaffe)曾把阿累尼乌斯(Svante Arrhenius,1859—1927)与奥斯特瓦尔德(Wilhelm Ostwald,1853—1932)、范特霍夫(Jacobus Henricus van’t Hoff,1852—1911)并称为电离理论的三大战士。三大战士中,阿累尼乌斯的年龄最小,他是斯万特·古斯塔夫·阿累尼乌斯(Svante GustavArrhenius)和卡诺琳娜·克里斯蒂娜·阿累尼乌斯(Carolina Christina Arrhenius)的第二个儿子,1859年2月19日诞生在瑞典乌普萨拉附近的维克村。
基金Supported by Risk Monitoring Task Project of Chongqing Drug Administration in 2020。
文摘[Objectives]To detect content of Pb,Cd,Hg,As,Cu,Zn,and Cr in Lysimachia christinae,and to analyze the pollution level.[Methods]Seven kinds of elements in L.christinae were determined by Inductively coupled plasma mass spectrometry and analyzed by single index and comprehensive index.[Results]The seven heavy metal elements showed good linearity in their respective concentration ranges.The recoveries of the samples were 84.5%-109.5%,and the RSD values were 2.30%-5.10%.Comparing the measured results of heavy metal elements with the limit values stipulated in the 2020 edition of the Chinese Pharmacopoeia and other standards,the Cr element in 19 batches of samples exceeded the standard,and the Zn element in 7 batches of samples exceeded the standard.The exceeding rates were 100.0%and 36.8%,respectively;the content of other heavy metal elements did not exceed the standard.The order of individual index from large to small was Cr,Zn,Cd,Hg,Cu,As,and Pb,and the average comprehensive pollution level was mild pollution and above.[Conclusions]L.christinae was mainly polluted by Cr,followed by Zn;this study can provide basic data for drafting of the limit standard for heavy metal elements in L.christinae.
文摘6月1-30日德国雷司令周Riesling Weeks Hong Kong一年一度的第五届香港雷司令周（Riesling Weeks Hong Kong）将于6月举行,为期一个月。活动重点是6月2日在湾仔香港万丽海景酒店举行的雷司令周开幕仪式（Riesling Weeks Kick Off Celebration）,由来自弗兰肯（Franken）产区的德国葡萄酒公主Christina Schneider揭幕。到场嘉宾可品尝150多款德国佳酿、精美国际及德国小食拼盘,
文摘Stick-lets by Christina Kazakia美国设计师Christina Kazakia为了鼓励孩子们走出家门,和大自然友好相处,设计了这一款五颜六色的连接环。连接环材料采用的是有弹性的硅胶,健康安全,可以自由伸缩,固定住枝条,木棍等。通过他们,孩子们可以搭建起自己想象中的建筑或巢穴。为了吸引孩子们的兴趣,她特意选用了五彩缤纷的颜色。
