HOME > About Shimadzu > Company Profile-Koichi Tanaka Memorial Mass Spectrometry Laboratory > Central part of soft laser desorption / ionization method "ion extraction part and sample stand" About Shimadzu Company Profile Message from the President Corporate Philosophy, Action Policy History Company Profile Base Business summary New business development Industry-academia-government collaboration Overseas business development Research and Development Koichi Tanaka Memorial Mass Spectrometry Laboratory Latest conference presentation List of treatises Lecture activity by Koichi Tanaka (Director) Introducing AXIMA-QIT with a video ( Challenge to MS n ) Nobel Prize and Mass Spectrometry 10 Questions Central part of soft laser desorption / ionization method "ion extraction part and sample stand" Koichi Tanaka Nobel Prize Winner Related Information Cultural facilities / schools Shimadzu Group Material procurement Get to know Shimadzu Central part of soft laser desorption / ionization method "ion extraction part and sample stand" In 1988, the world's first mass spectrometer that could measure biopolymers was born. It is "LAMS-50K". This is the first product that Director Tanaka has been involved in since development. At that time, this product was inadequate in terms of practical use, and the number of sales was "1" in the world. However, at this time, the foundation of the current mass spectrometer was completed. Here, we would like to introduce the "ion extraction unit and sample table" of the "LAMS-50K". (The "ion extraction unit and sample table" introduced here is also used in our current mass spectrometers with changes and improvements in shape.) The parts in the photo are the same as those used for the LAMS-50K. Reproduced using the drawings at that time. After entering the laser beam from the front and reflecting it to the right side with a 45 degree mirror, irradiate the mixture of the sample (example: protein) and the matrix on the sample table. The sample becomes ions and is drawn out by the power of electricity. After that, it passes through a small hole in the center of the 45 degree mirror and flies to the left side of the part, where the ions are separated by weight (mass separation part). Various knowledge and techniques such as physics, chemistry, biology, material engineering, electrical engineering, and mechanical engineering are required to reach this point in the shape and material of this part. This is just a small part of a large device, but the development involves engineers from various disciplines. This part is always on display at the following four museums (as of September 2004). 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