Liquid-filled combination container, inspection method, and manufacturing method for liquid-filled combination container

An inspection method of inspecting an oxygen concentration in a container of a liquid-filled combination container, wherein

• the liquid-filled combination container comprises;
• the container having oxygen permeability and containing liquid in a containing portion;
• a barrier container having oxygen barrier properties and accommodating the container;
• at least one oxygen reactant that can react with oxygen in the barrier container;
• and
• a fluorescent material that varies in fluorescence time or fluorescence intensity according to a surrounding oxygen concentration, wherein
• the fluorescent material is provided on an inner surface of the container at a fluorescent material installation location apart from a contact region of the containing portion, the contact region contacting with the liquid,
• the container has light transmission properties at least at the fluorescent material installation location,
• the barrier container includes a light transmission location where the barrier container has light transmission properties,
• the oxygen reactant is fixed to at least any one of an outer surface of the container and an inner surface of the barrier container and therefore light can be applied from outside the barrier container to the fluorescent material by allowing the light to penetrate through the barrier container at the light transmission location and the container at the fluorescent material installation location, and/or the oxygen reactant is disposed at a location not placed between the fluorescent material installation location and the light transmission location when accommodated in an oxygen reactant accommodating portion which is defined in part of the barrier container,
• the container includes a container body including an opening part and a stopper that closes the opening part,
• the stopper has oxygen permeability,
• the stopper includes a first face opposed to the container body and a second face located on an opposite side to the first face, and
• the stopper may be made of silicone rubber,
• the inspection method comprising:
• an attenuation factor measurement step of measuring an attenuation factor of laser light or LED light with a wavelength to be attenuated according to an oxygen concentration in an optical path by applying the laser light or the LED light to the liquid-filled combination container such that the laser light or the LED light penetrates through the barrier container at the location where the barrier container has light transmission properties and the container at the first location and the second location;
• and
• a measurement step of measuring the oxygen concentration in the container in accordance with the attenuation factor measured in the attenuation factor measurement step.