Abstract: A cylindrical secondary battery includes: an electrode assembly including a first electrode plate and a second electrode plate; a cylindrical case having a disk-shaped top portion and a side portion extending from the top portion, the cylindrical case accommodating the electrode assembly; a cathode terminal extending through the top portion and insulated therefrom; a first current collector plate electrically connected to the first electrode plate and the cathode terminal; a second current collector plate electrically connected to the second electrode plate and the side portion of the cylindrical case; a cap plate coupled to the side portion and insulated therefrom; and an insulation tape between the top portion of the cylindrical case and the first current collector plate and covering the first current collector plate.

Abstract: The present invention relates to a sample plate for matrix-assisted laser desorption ionization (MALDI) mass spectrometry having a stable glyco-affinity layer of a carboxyalkyl boronic acid or carboxyaryl boronic acid and a preparation method of the sample plate. The sample plate shows excellent selectivity for glycoprotein, and can be easily and cost effectively prepared. The sample plate is useful for glycoprotein analysis by MALDI mass spectrometry.

Abstract: The present invention relates to a sample plate for matrix-assisted laser desorption ionization (MALDI) mass spectrometry having a stable glyco-affinity layer of a carboxyalkyl boronic acid or carboxyaryl boronic acid and a preparation method of the sample plate. The sample plate shows excellent selectivity for glycoprotein, and can be easily and cost effectively prepared. The sample plate is useful for glycoprotein analysis by MALDI mass spectrometry.