Abstract:
A calibration suspension unit has a container made of a flexible material that is filled with a calibration suspension for the calibration of a turbidity meter. There exists no air supernatant above the calibration suspension in the container. Further, a method for the manufacture of a calibration suspension unit is provided and its use for the calibration of a turbidity meter is described.
Abstract:
A method is provided of using morphologically specific free-floating structures as Standards in the pharmaceutical industry to test objects in drug containers. These structures are micropatterned according to a desired pattern. A container is filled with a defined number of the standards, which then can be used as a standard reference for testing other drug products held in a drug container. The testing pertains to optically identifying structures in the drug container that can be similar in size and shape as the standards, or that can be different in size and shape as the standards. The advantage of the method is that imaging systems with tracking algorithms that count and track sub-visible and visible particles in solution can be used to identify e.g. glass flakes and other foreign particles by comparing them to the shape and size of the standard reference particles.
Abstract:
The present invention relates to a method for monitoring a control parameter of a polymerization reaction mixture in heterogeneous phase comprising the following steps: (a) acquiring at least one NIR reflectance spectrum of said mixture; (b) calculating a value of said control parameter by means of a calibration curve which correlates the NIR reflectance spectrum with the values of said control parameter measured with a reference measurement method. The present invention also relates to an apparatus for implementing said method.
Abstract:
A substrate processing apparatus includes a substrate retaining mechanism; a detecting unit detecting a placed state of the substrate retained by the substrate retaining mechanism; a first determination unit comparing detection data of the substrate obtained by the detecting unit with master data that is a reference to determine if the detection data is within a first allowed value; a confirmation unit confirming substrate type; a second determination unit comparing the detection data of the substrate with the master data to determine if the detection data is within a second allowed value; and a transfer control unit controlling the substrate retaining mechanism depending on a determination result of the second determination unit when substrate type is confirmed as a predetermined type by the confirmation unit when it is determined that the detection data is not within the first allowed value as determined by the first determination unit.
Abstract:
A measuring method of bromate ion concentration includes a first fluorescence intensity measuring process including a process of passing hydrochloric acid through an anion exchanger to elute bromate ions adsorbed to the anion exchanger into the hydrochloric acid and a process of measuring the fluorescence intensity of the hydrochloric acid passed through the anion exchanger, a second fluorescence intensity measuring process including a process of passing a hydrochloric acid solution containing a fluorescent substance whose fluorescence intensity changes due to coexistence of bromate ions through an anion exchanger to elute bromate ions adsorbed to the anion exchanger into the hydrochloric acid solution and a process of measuring the fluorescence intensity of the hydrochloric acid solution passed through the anion exchanger, and a calculation process determining the bromate ion concentration in the water sample by using the difference between the fluorescence intensities of the hydrochloric acid solution and the hydrochloric acid.
Abstract:
A hand-held microfluidic testing device is provided that includes a housing having a cartridge receiving port, a cartridge for input to the cartridge receiving port having a sample input and a channel, where the channel includes a mixture of Raman-scattering nanoparticles and a calibration solution, where the calibration solution includes chemical compounds capable of interacting with a sample under test input to the cartridge and the Raman-scattering nanoparticles, and an optical detection system in the housing, where the optical detection system is capable of providing an illuminated electric field, where the illuminating electric field is capable of being used for Raman spectroscopy with the Raman-scattering nanoparticles and the calibration solution to analyze the sample under test input to the cartridge.
Abstract:
A gas analysis method includes irradiating a sample gas introduced into a gas cell with infrared light tuned to a wavelength corresponding to one absorption line of a target gas contained in the sample gas, measuring a sample signal value corresponding to intensity of transmitted light of the infrared light transmitted through the gas cell, evacuating the sample gas in the gas cell and then replacing by a reference gas, measuring a reference signal value corresponding to intensity of transmitted light of the infrared light transmitted through the reference gas, and calculating gas concentration at the one absorption line from ratio of the sample signal value to the reference signal value.
Abstract:
An apparatus for the calibration of optical measuring instruments with a carrier includes a calibration body having a glass body which has at least one scattering element, wherein the scattering element is completely surrounded by the glass body, and wherein a degree of transmission of the scattering element and of the glass body differ from one another.
Abstract:
An apparatus for the calibration of optical measuring instruments with a carrier includes a calibration body having a glass body which has at least one scattering element, wherein the scattering element is completely surrounded by the glass body, and wherein a degree of transmission of the scattering element and of the glass body differ from one another.
Abstract:
A calibration method for a spectrometer and a reference material which facilitates calibration of the spectrometer are provided. The reference material has a homogeneous content of elements protected by an inert coating.