The JMS-S3000 is a MALDI-TOF MS incorporating JEOL’s unique Spiral TOF ion optic system. Featuring unprecedented levels of mass resolution and sensitivity, the system has been acknowledged for its distinctive capabilities in many scientific studies.
The SpiralTOF™ ion optic system in the JMS-S3000 is superior to linear and reflectron ion optical systems. Utilizing the Perfect Focusing and Multi-Turn developed by Osaka University, the SpiralTOF™ ion optic system can focus ion packets per a given... Read more
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JMS-S3000 MALDI-TOF MS
The JMS-S3000 is a MALDI-TOF MS incorporating JEOL’s unique Spiral TOF ion optic system. Featuring unprecedented levels of mass resolution and sensitivity, the system has been acknowledged for its distinctive capabilities in many scientific studies.
The SpiralTOF™ ion optic system in the JMS-S3000 is superior to linear and reflectron ion optical systems. Utilizing the Perfect Focusing and Multi-Turn developed by Osaka University, the SpiralTOF™ ion optic system can focus ion packets per a given distance (a single layer of the spiral path). As a result, ion packets do not widen during flight and are focused at the detection surface when the length of flight is extended, achieving high mass resolution and accuracy as well as high ion detection efficiency.
The ion optic system of MALDI-TOF MS combines two ion optic systems, one using delayed extraction (length to focus position L1: red line) and the other having kinetic energy convergence (length L2: blue line). Delayed extraction, while contributing significantly to enhancing mass resolution of MALDI-TOF MS, has a flaw that the mass range where it achieves high resolution is localized. This problem is solved by increasing the L2/L1 ratio (ratio of the blue line). The JMS-S3000, where L2 is longer than in any conventional reflectron TOF MS by an order of magnitude, can analyze samples at high mass resolution and at high mass accuracy by internal reference.
The SpiralTOF™ ion optic system in the JMS-S3000 is superior to linear and reflectron ion optical systems. Utilizing the Perfect Focusing and Multi-Turn developed by Osaka University, the SpiralTOF™ ion optic system can focus ion packets per a given distance (a single layer of the spiral path). As a result, ion packets do not widen during flight and are focused at the detection surface when the length of flight is extended, achieving high mass resolution and accuracy as well as high ion detection efficiency.
The ion optic system of MALDI-TOF MS combines two ion optic systems, one using delayed extraction (length to focus position L1: red line) and the other having kinetic energy convergence (length L2: blue line). Delayed extraction, while contributing significantly to enhancing mass resolution of MALDI-TOF MS, has a flaw that the mass range where it achieves high resolution is localized. This problem is solved by increasing the L2/L1 ratio (ratio of the blue line). The JMS-S3000, where L2 is longer than in any conventional reflectron TOF MS by an order of magnitude, can analyze samples at high mass resolution and at high mass accuracy by internal reference.
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