999 resultados para Hunt, Joseph, fl. 1859


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1924/01 (N7)-1924/02.

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1923/07 (N4)-1923/08.

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1927/07 (N29)-1927/12 (N30).

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Many students and professionals in chemistry and chemical engineering related the name Kwong with one of the most remarkable equations of state with two parameters. In the same way, very few people know who Kowng was. This article shows some of the unknown personal and professional facts of Joseph Neng Shun Kwong, a person who devoted almost four decades of his life to the industrial research in the adhesives industry.

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The QuEChERS extraction method followed by quantification using HPLC/UV-FL was evaluated for deoxynivalenol (DON) and zearalenone (ZEA) determination in natural and parboiled rice and their fractions (bran and husk). The comparison between QuEChERS and partition with acetonitrile extraction showed that the first one was better. It presented higher recovery (91% for DON, 105% for ZEA) wih precision ranging from 1.5 to 18.6%. The limits of quantification were 22.2 µg kg-1 for DON and 4.3 µg kg-1 for ZEA. DON and ZEA showed higher levels in endosperm of parboiled rice (8 e 111.7 µg kg-1, respectively) when compared to natural rice.

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Digital reproduction, The National Library of Finland, Centre for Preservation and Digitisation, Mikkeli

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Digital reproduction, The National Library of Finland, Centre for Preservation and Digitisation, Mikkeli

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Digital reproduction, The National Library of Finland, Centre for Preservation and Digitisation, Mikkeli