A novel, green and affordable semi-quantitative limit test for 2-aminobutanol impurity in ethambutol hydrochloride bulk and tablets von Thanayutsiri, Thana, Patrojanasophon, Prasopchai, Opanasopit, Praneet, Ngawhirunpat, Tanasait, Rojanarata, Theerasak

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Rapid and efficient microwave-assisted extraction of Caesalpinia sappan Linn. heartwood and subsequent synthesis of gold nanoparticles von Thanayutsiri, Thana, Patrojanasophon, Prasopchai, Opanasopit, Praneet, Ngawhirunpat, Tanasait, Laiwattanapaisal, Wanida, Rojanarata, Theerasak

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Facile, sensitive and reagent-saving smartphone-based digital image colorimetric assay of captopril tablets enabled by long-pathlength RGB acquisition von Thanayutsiri, Thana, Charoenying, Thapakorn, Patrojanasophon, Prasopchai, Pamornpathomkul, Boonnada, Opanasopit, Praneet, Ngawhirunpat, Tanasait, Rojanarata, Theerasak

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Investigating matrix interference in the pharmacopeial limit test for aluminum in citric acid: a re-examination, for revision of the method von Rojanarata, Theerasak, Maithongdee, Kittithat, Yuwansri, Nattapong, Kaewprasert, Sirada, Thanayutsiri, Thana, Phadungcharoen, Noppharat, Chinsriwongkul, Akhayachatra

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Rapid synthesis of chitosan-capped gold nanoparticles for analytical application and facile recovery of gold from laboratory waste von Thanayutsiri, Thana, Patrojanasophon, Prasopchai, Opanasopit, Praneet, Ngawhirunpat, Tanasait, Plianwong, Samawadee, Rojanarata, Theerasak

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Green and facile short path smartphone-based assay for L-proline in dietary supplements using a mild chromogenic reaction combined with simple equipment von Thanayutsiri, Thana, Patrojanasophon, Prasopchai, Opanasopit, Praneet, Ngawhirunpat, Tanasait, Chinsriwongkul, Akhayachatra, Rojanarata, Theerasak

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Improving pharmaceutical analysis by incorporating green chemistry and smartphone technology: The assay for dissolution test of ethambutol tablets as an example von Thanayutsiri, Thana, Ruttanakorn, Kanong, Laiwattanapaisal, Wanida, Fernandez, Raimon Gaspar, Rojanarata, Theerasak

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Investigating matrix interference in the pharmacopeial limit test for aluminum in citric acid: a re-examination, for revision of the method von Rojanarata, Theerasak, Maithongdee, Kittithat, Yuwansri, Nattapong, Kaewprasert, Sirada, Thanayutsiri, Thana, Phadungcharoen, Noppharat, Chinsriwongkul, Akhayachatra

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