A novel “off-on-off” sensor for consecutive detection of Al3+ and <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si1.svg"><mml:mrow><mml:msub><mml:mtext>H</mml:mtext><mml:mn>2</mml:mn></mml:msub><mml:msubsup><mml:mtext>PO</mml:mtext><mml:mn>4</mml:mn><mml:mo>-</mml:mo></mml:msubsup></mml:mrow></mml:math> as well as application in food and living cells

Linlong Deng, Yelin Yao, Lei Xue, Hao Hu, Haibin Wang