2008-2009 Roberta Rust in Recital: Honoring Haydn

A concert commemorating the bicentennial of the death of Franz Joseph Haydn in May 1809

2009-2010 Master Class - Two Pianists (Piano)

Two Pianists Nina Schumann and Luis Magalhães Performance (October 3, 2009) - Programhttps://spiral.lynn.edu/conservatory_masterclasses/1085/thumbnail.jp

SPE-RRLC DETERMINATION OF SOME PESTICIDE RESIDUES IN APPLE JUICE

This paper presents the development of RRLC (Rapid Resolution Liquid Chromatography) method for simultaneous determination of pesticides methomyl, methidathion and propiconazole in different clear apple juice samples. The experiments are performed using rapid resolution liquid chromatography system coupled with UV-VIS diode array detector. The developed high speed reversed-phase (RP) liquid chromatography method is carried out on the Purospher® Star RP-18 endcapped (30 mm × 4 mm; 3 μm) column, mobile phase consists of acetonitrille and water (50/50, V/V), flow rate of 1 mL/min, column temperature at 25 ºC and UV detection at 220 nm and 235 nm. Prior to RRLC analysis, the samples are cleaned up and concentrated using a solid-phase extraction (SPE). To assess the validity of the developed method, the following parameters are examined: selectivity, linearity, repeatability (precision), limit of detection, limit of quantification and accuracy

DEVELOPMENT OF HIGH SPEED RRLC METHOD FOR QUANTITATIVE DETERMINATION OF SOME PESTICIDE RESIDUES IN APPLE JUICE

Possibilities of normal-phase (NP) and reversed-phase (RP) liquid chromatography methods for determination of methomyl, methidathion and propiconazole residues in apple juice were studied. The investigations were carried out on various analytical columns using RRLC (Rapid Resolution Liquid Chromatography) system coupled with UV-Vis diode array detector. The best conditions for separation and quantitative determination of tested pesticides were obtained using reversed-phase mode and Purospher® Star RP-18 endcapped (30 mm × 4 mm; 3 μm) column. Fast and simple method for direct determination of methidathion and propiconazole in different apple juice matrix was developed. In accordance to European Commission regulation the tested parameters for method validation (selectivity, linearity, precision, limit of detection, limit of quantification and accuracy) were satisfied

2009-2010 Celebrating Chopin & Schumann: From the Studio of Roberta Rust

This concert is a bicentennial celebration of the birth in 1810 of Frederic Chopin and Robert Schumann

2009-2010 Master Class - Arie Vardi (Piano)

Arie Vardi Cannon Buried in Flowers: The Polonaises of Chopin (January 23, 2010) - Programhttps://spiral.lynn.edu/conservatory_masterclasses/1091/thumbnail.jp