Abstract: A holding device is provided that has a base body having a plurality of openings in a first surface and a plurality of holding elements each having a movable surface. The plurality of holding elements are arranged with respect to the plurality of openings, respectively, such that a container extending in a respective opening of the plurality of openings is held by a respective one of the plurality of holding elements in a positive fit. The movable surface faces the container in a direction that is perpendicular to a height of the container. The holding element establishes the positive fit by a displacement movement of the movable surface. The displacement movement has a direction of movement that inclines an angle with the height of the container in a range from 60 to 120°.

Abstract: A holding device is provided that has a base body having a plurality of openings in a first surface and a plurality of holding elements each having a movable surface. The plurality of holding elements are arranged with respect to the plurality of openings, respectively, such that a container extending in a respective opening of the plurality of openings is held by a respective one of the plurality of holding elements in a positive fit. The movable surface faces the container in a direction that is perpendicular to a height of the container. The holding element establishes the positive fit by a displacement movement of the movable surface. The displacement movement has a direction of movement that inclines an angle with the height of the container in a range from 60 to 120°.

Abstract: A method for measuring a concentration of a gas in a container having a wall with at least one deformable portion, the gas absorbing electromagnetic radiation at least in a specific spectral range, wherein the method includes the steps of biasing deformable portion and a further portion of wall opposite deformable portion between opposite positioning surfaces, thereby forming a biased volume of the container between the opposite positioning surfaces, during a measuring time, transmitting electromagnetic radiation into biased volume and receiving transmitted or reflected radiation of transmitted radiation from biased volume along respective radiation paths, relatively moving, during measuring time, at least one of deformable portion and of further portion and at least one of radiation paths, and determining concentration of said gas from the radiation received.

Abstract: A method for measuring a concentration of a gas in a container having a wall with at least one deformable portion, the gas absorbing electromagnetic radiation at least in a specific spectral range, wherein the method includes the steps of biasing deformable portion and a further portion of wall opposite deformable portion between opposite positioning surfaces, thereby forming a biased volume of the container between the opposite positioning surfaces, during a measuring time, transmitting electromagnetic radiation into biased volume and receiving transmitted or reflected radiation of transmitted radiation from biased volume along respective radiation paths, relatively moving, during measuring time, at least one of deformable portion and of further portion and at least one of radiation paths, and determining concentration of said gas from the radiation received.