OptiMelt Automated Melting Point System - Stanford Research ...

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92 Using Melt Graphs Appendix CFigure 43. Melt Graphs provide a simplified representation of the melt process. Thresholds areassigned for the onset, meniscus and clear points, and are used by the digital image processor forautomated determinations.OptiMelt Automated Melting Point System
Appendix C Using Melt Graphs 93The three most important qualities of Melt Graphs, which hold true for most wellbehavedchemicals, are that their detection thresholds are (1) very deterministic, (2) rampindependent and (3) shared by samples that behave in similar manner during a melt. Forexample, most white samples which melt without decomposition share similar MeltGraphs and detection thresholds.Figure 44. Melt Graph for phenacetin as a function of heating ramp rate.Melt Playback (MeltView Software)The sample images captured by digital camera are also available for real-time transfer toa PC over the USB interface.The MeltView software package provided with your OptiMelt can handle real-timeimage transfer, allowing you to display and store high-resolution digital images of thesamples (including relevant information such as temperature, time and date) on yourcomputer screen during analysis. All sample images transferred to the PC are bundledtogether as a single package and automatically stored in the computer’s hard disk whenthe test is completed. This option provides the most powerful and definitivedocumentation infrastructure available from any commercial melting point apparatus.Stored images may be recalled at any time, and melts can be played back frame-by-frameor as a movie, by simple moving a cursor back and forth with your mouse. Being able toreplay a test after the fact is an invaluable tool for GLP documentation, fine tuning ofresults, and laboratory demonstrations in educational settings.OptiMelt Automated Melting Point System
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iiSafety and Preparation For Use•
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ivSafety and Preparation For UseOpt
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viContentsMelting Point Range 57Mel
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viiiFront Panel OverviewReady LEDA
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xBack Panel OverviewPrinterOptiMelt
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xiiSpecificationsOptiMelt Automated
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2 Getting Started Chapter 1• Repl
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4 Getting Started Chapter 1Ceramic
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6 Getting Started Chapter 1Principl
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8 Getting Started Chapter 1Quick St
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10 Getting Started Chapter 18. Preh
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12 Getting Started Chapter 1Touch t
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14 Getting Started Chapter 1If none
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16 Getting Started Chapter 1• Tou
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18 Getting Started Chapter 1OptiMel
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20 Displays and Menus Chapter 2Nume
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22 Melt Screen Chapter 2Melt Screen
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Chapter 2 Melt Screen 25Touch the T
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Chapter 2 Melt Screen 27Select Newe
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Chapter 2 Melt Screen 29Select Came
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Chapter 2 Melt Screen 31Options Men
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Chapter 2 Melt Screen 33The thermod
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Chapter 2 Timer Screen 35ResetTouch
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Chapter 2 T Meter Screen 37Alarm Lo
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Chapter 2 System Screen 39System Sc
Page 55 and 56: Chapter 2 System Screen 41The Print
Page 57 and 58: Chapter 2 System Screen 43Screen Me
Page 59 and 60: Melting Point Determination 45Chapt
Page 61 and 62: Chapter 3 Melting Point Determinati
Page 77 and 78: Maintenance and Calibration 63Chapt
Page 79 and 80: Chapter 4 Maintenance and Calibrati
Page 91 and 92: Pharmacopeia vs. Thermodynamic Melt
Page 93 and 94: Appendix A Pharmacopeia vs. Thermod
Page 99 and 100: Melting Point Certified Reference S
Page 101 and 102: Appendix B Melting Point Certified
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Page 105: Using Melt Graphs 91Appendix CUsing
Page 109 and 110: OptiMelt Remote Programming 95Appen
Page 111 and 112: Appendix D OptiMelt Remote Programm
Page 123: Appendix D OptiMelt Remote Programm
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