{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,27]],"date-time":"2026-02-27T11:41:26Z","timestamp":1772192486216,"version":"3.50.1"},"reference-count":25,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2013,9,25]],"date-time":"2013-09-25T00:00:00Z","timestamp":1380067200000},"content-version":"vor","delay-in-days":1332,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J Chinese Chemical Soc"],"published-print":{"date-parts":[[2010,2]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>A new simple and sensitive and selective spectrophotometric method has been developed for the determination of ascorbic acid (AA) at trace level using a new reagent, leuco malachite green (LMG). AAreacts with potassium iodide\u2010iodate solution under acidic conditions to liberate iodine and the liberated iodine selectively oxidizes LMG to MG dye. The colour of the dye was measured at 620 nm. Beer's law is obeyed over the concentration range of 0.8\u20138 i\u03bcg \u03bcAA per 25 mL of final solution (0.032\u20130.32 ppm). The apparent molar absorptivity and Sandell's sensitivity of the method were found to be 2.98 \u00d7 10<jats:sup>5<\/jats:sup> l mol<jats:sup>\u22121<\/jats:sup> cm<jats:sup>\u22121<\/jats:sup>, 0.0042 \u03bcg cm<jats:sup>\u22122<\/jats:sup>, and respectively. Statistical treatment of the experimental results indicates that the method is precise and accurate. The method is free from interference of common ions and many of the ingredients commonly found in pharmaceuticals. The reliability of the method was established by parallel determination against Leucocrystal violet (LCV) method. The method described was satisfactorily applied for the determination of AA in fruit juices, pharmaceuticals and biological samples.<\/jats:p>","DOI":"10.1002\/jccs.201000017","type":"journal-article","created":{"date-parts":[[2015,5,1]],"date-time":"2015-05-01T15:29:19Z","timestamp":1430494159000},"page":"105-110","source":"Crossref","is-referenced-by-count":11,"title":["A New Spectrophotometric Method for the Determination of Ascorbic Acid Using Leuco Malachite Green"],"prefix":"10.1002","volume":"57","author":[{"given":"Kishore K.","family":"Tiwari","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2013,9,25]]},"reference":[{"key":"e_1_2_1_2_2","first-page":"717","volume":"27","author":"Noroozifar M.","year":"2003","journal-title":"Turk. J. 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