div class=ts-pagebuttonPage 1button div class=ts-image a href=https:reader040vdocumentssitereader040viewer2022020523575068461a28ab0f07af6710html5page1jpg target=_blank amp-img class=ts-thumb alt=Page 1: New Technique for determining the Concentration and Distribution of Lead in Materials src=https:reader040vdocumentssitereader040viewer2022020523575068461a28ab0f07af6710html5thumbnails1jpg width=142 height=106 layout=responsive amp-imga divp© 1971 Nature Publishing Grouppdivdiv class=ts-pagebuttonPage 2button div class=ts-image a href=https:reader040vdocumentssitereader040viewer2022020523575068461a28ab0f07af6710html5page2jpg target=_blank amp-img class=ts-thumb alt=Page 2: New Technique for determining the Concentration and Distribution of Lead in Materials src=https:reader040vdocumentssitereader040viewer2022020523575068461a28ab0f07af6710html5thumbnails2jpg width=142 height=106 layout=responsive amp-imga divp© 1971 Nature Publishing Grouppdiv