Spectroscopy - June 2009 - (Page 44) 44 Spectroscopy 24(6) June 2009 w w w. s p e c t r o s c o p y o n l i n e . c o m Table III: Analytic parameters Nucleic acids ctDNA Linear range (mg/L) 0.00–1.89 Linear regression equation (mg/L) I RLS = 278.75C + 80.59 Limit of determination (ng/mL) 9.46 RSD (%) 1.5 Correlation coefficient (r) 0.9988 Table IV: Determination of ctDNA in synthetic sample Nucleic acids containing in samples (mg/L) 0.30 (ctDNA) 0.60 (ctDNA) 1.20 (ctDNA) Main interference (mg/L) 20 Ca(II), 20 Fe(III), 20 DL-alanine, 20 DL-proline 20 Mg(II), 23 Al(III), 40 adenine, 20 DL-arginine 31 KH2PO 4, 20 adenine, 20 Glucose, 20 Thymine Found (n = 5, mg/L) 0.29 0.57 1.25 Recovery (%) 96.7 95.0 104.2 RLS is reported. 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Chao Weng, Xiaoming Chen, and Changqun Cai are with the College of Chemistry, and Key Lab of Environment Friendly Chemistry and Application, Ministry of Education, Xiangtan University, Xiangan, 411105, P.R. China. For more information on this topic, please visit our homepage at: www.spectroscopyonline.com http://www.spectroscopyonline.com http://www.spectroscopyonline.com Table of Contents for the Digital Edition of Spectroscopy - June 2009 Spectroscopy - June 2009 Contents News Spectrum Auger Spectroscopy Statistics and Chemometrics for Clinical Data Reporting, Part 1 Understanding and Interpreting the New GAMP 5 Software Categories Current Status of Standoff LIBS Security Applications at the United States Army Research Laboratory Spectral Studies on the Interaction of [Ru(bpy)2(BTIP)]2+ with DNA and Determination of Nucleic Acids at Nanogram Levels Product Resources Calendar Ad Index Spectroscopy - June 2009 Spectroscopy - June 2009 - (Page BB1) Spectroscopy - June 2009 - (Page BB2) Spectroscopy - June 2009 - Spectroscopy - June 2009 (Page Cover1) Spectroscopy - June 2009 - Spectroscopy - June 2009 (Page Cover2) Spectroscopy - June 2009 - Spectroscopy - June 2009 (Page 3) Spectroscopy - June 2009 - 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June 2009 - Statistics and Chemometrics for Clinical Data Reporting, Part 1 (Page 21) Spectroscopy - June 2009 - Understanding and Interpreting the New GAMP 5 Software Categories (Page 22) Spectroscopy - June 2009 - Understanding and Interpreting the New GAMP 5 Software Categories (Page 23) Spectroscopy - June 2009 - Understanding and Interpreting the New GAMP 5 Software Categories (Page 24) Spectroscopy - June 2009 - Understanding and Interpreting the New GAMP 5 Software Categories (Page 25) Spectroscopy - June 2009 - Understanding and Interpreting the New GAMP 5 Software Categories (Page 26) Spectroscopy - June 2009 - Understanding and Interpreting the New GAMP 5 Software Categories (Page 27) Spectroscopy - June 2009 - Understanding and Interpreting the New GAMP 5 Software Categories (Page 28) Spectroscopy - June 2009 - Understanding and Interpreting the New GAMP 5 Software Categories (Page 29) Spectroscopy - June 2009 - Understanding and Interpreting the New GAMP 5 Software Categories (Page 30) Spectroscopy - June 2009 - Understanding and Interpreting the New GAMP 5 Software Categories (Page 31) Spectroscopy - June 2009 - Current Status of Standoff LIBS Security Applications at the United States Army Research Laboratory (Page 32) Spectroscopy - June 2009 - Current Status of Standoff LIBS Security Applications at the United States Army Research Laboratory (Page 33) Spectroscopy - June 2009 - Current Status of Standoff LIBS Security Applications at the United States Army Research Laboratory (Page 34) Spectroscopy - June 2009 - Current Status of Standoff LIBS Security Applications at the United States Army Research Laboratory (Page 35) Spectroscopy - June 2009 - Current Status of Standoff LIBS Security Applications at the United States Army Research Laboratory (Page 36) Spectroscopy - June 2009 - Current Status of Standoff LIBS Security Applications at the United States Army Research Laboratory (Page 37) Spectroscopy - June 2009 - Current Status of Standoff LIBS Security Applications at the United States Army Research Laboratory (Page 38) Spectroscopy - June 2009 - Spectral Studies on the Interaction of [Ru(bpy)2(BTIP)]2+ with DNA and Determination of Nucleic Acids at Nanogram Levels (Page 39) Spectroscopy - June 2009 - Spectral Studies on the Interaction of [Ru(bpy)2(BTIP)]2+ with DNA and Determination of Nucleic Acids at Nanogram Levels (Page 40) Spectroscopy - June 2009 - Spectral Studies on the Interaction of [Ru(bpy)2(BTIP)]2+ with DNA and Determination of Nucleic Acids at Nanogram Levels (Page 41) Spectroscopy - June 2009 - Spectral Studies on the Interaction of [Ru(bpy)2(BTIP)]2+ with DNA and Determination of Nucleic Acids at Nanogram Levels (Page 42) Spectroscopy - June 2009 - Spectral Studies on the Interaction of [Ru(bpy)2(BTIP)]2+ with DNA and Determination of Nucleic Acids at Nanogram Levels (Page 43) Spectroscopy - June 2009 - Spectral Studies on the Interaction of [Ru(bpy)2(BTIP)]2+ with DNA and Determination of Nucleic Acids at Nanogram Levels (Page 44) Spectroscopy - June 2009 - Product Resources (Page 45) Spectroscopy - 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