Green Downscaling of Solvent Extractive Determination Employing Coconut Oil as Natural Solvent with Smartphone Colorimetric Detection: Demonstrating the Concept via Cu(II) Assay Us... gan Kullapon Kesonkan, Chonnipa Yeerum, Kanokwan Kiwfo, Kate Grudpan, Monnapat Vongboot

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Modified Natural Rubber as a Simple Chemical Sensor with Smartphone Detection for Formaldehyde Content in a Seafood Sample gan Chonnipa Yeerum, Piyanat Issarangkura Na Ayutthaya, Kullapon Kesonkan, Kanokwan Kiwfo, Ploenpit Boochathum, Kate Grudpan, Monnapat Vongboot

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Determination of Lead Employing Simple Flow Injection AAS with Monolithic Alginate-Polyurethane Composite Packed In-Valve Column gan Piyanat Issarangkura Na Ayutthaya, Chonnipa Yeerum, Kullapon Kesonkan, Kanokwan Kiwfo, Kate Grudpan, Norio Teshima, Hiroya Murakami, Monnapat Vongboot

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Lead Assays with Smartphone Detection Using a Monolithic Rod with 4-(2-Pyridylazo) Resorcinol gan Piyanat Issarangkura Na Ayutthaya, Chonnipa Yeerum, Kullapon Kesonkan, Kanokwan Kiwfo, Kate Grudpan, Norio Teshima, Hiroya Murakami, Monnapat Vongboot

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