The disclosure relates to laboratory equipment with flammable refrigerant and connected to at least two different electrical potentials for supplying the equipment with electrical energy. An electrical switch arrangement has first and second switches for electrical separation from, respectively, the first and second potentials. A sequence controller switches on the first switch and thereafter the second switch. A monitoring device is connected via a first contact on the equipment side to the first switch and via a second contact on the mains side to an electrical potential other than the first electrical potential for detecting a switched-on state of the first switch and signaling the detection to the sequence controller. When the monitoring device signals a switched-on state, the sequence controller blocks operation of the equipment as a function of the signaled switched-on state and whether the first switch is expected to be switched on or switched off.

Analytic sensors and methods utilize an attenuated total reflection (ATR) crystal to detect volatile compounds in an arrangement that reduces interference from compounds other than the one of interest. In particular, the components in the measurement stream are limited to those having volatilities close to that of the analyte of interest, which may be identified based on, for example, the temperature of the ATR crystal and the “dwell time”—i.e., an interval of substantially constant temperature as the ATR crystal is heated.

Systems, methods, and collection devices are disclosed for rapid, local PCR testing. The PCR testing system may be configured for use with a disposable sample collection device that includes a swab configured for collecting a biological sample from a patient; and a sample container configured to receive the swab and separate a bulk quantity of the biological sample from the swab for containment in a bulk collection chamber, which is located with the sample container, wherein the sample container is configured to meter a selected volume of the biological sample into a PCR sample tube, which contains a lyophilized master mix, releasably attachable to the sample container.

A system for controlling a filling level of a reservoir filled with a liquid includes the reservoir configured to be filled with the liquid at least up to a maximum filling level. The system also includes a probe including a probe body, at least a section of the probe body extending, in a height dimension of the reservoir, from a first position to a second position, the first position being lower than the second position, and the second position being above the maximum filling level, and further including a temperature dependent sensor configured to generate a sensor signal based on a temperature at the second position, the temperature depending on the filling level. The system also includes a controller for controlling the filling level of the reservoir depending on the sensor signal such that the filling level is kept constant.

Provided is a reagent cooler that prevents occurrence of condensation and further uniforms a temperature in the cooler with low power consumption and a simple structure. The reagent cooler includes a refrigerant pipe that is disposed inside an outer wall of the reagent cooler 103 and circulates a refrigerant inside the outer wall; a blowing pipe 109 that is disposed inside the outer wall and guides outside air existing outside the reagent cooler to inside of the reagent cooler; and a blowing unit 114 that is disposed at the blowing pipe and diffuses the outside air into the inside of the reagent cooler through the blowing pipe. With the outside air cooled by the outer wall and taken into the inside of the reagent cooler, the reagent cooler is positively pressurized and the internal temperature is made uniform.

Methods and apparatus for a cooled chemical cabinet include a cooling duct configured to cool a heatsink coupled to a thermoelectric module (TEM). The cooling duct includes a fan configured to pull air into an inlet duct and onto the heatsink. The air pulled in by the fan absorbs the heat from the heatsink. The cooling duct further includes an exhaust duct connected to the fan and configured to expel the heated air. The exhaust duct is configured to expel the heated air outside the chemical cabinet and away from the TEM.

The embodiment of the present disclosure provides a temperature control device and a temperature control system. The temperature control device comprises an object stage, a housing, and at least one temperature control structure. The temperature control structure has a main body portion and a temperature control component, and main body portion defines an air duct, and wherein, the main body portion has a second air inlet and a second air outlet, and the first air inlet is connected to the second air outlet, and the external air enters the air duct defined by the main body portion from the second air inlet of the main body portion, and the air then enters the housing through the second air outlet, and the temperature control component is connected, so as to the main body portion to control the temperature of the air in the air duct.

A microfluidic preconcentrator is provided, designed to receive a gas sample containing gaseous pollutants such as volatile organic compounds, to concentrate the gaseous pollutants and to transfer them to an analysis device. An assembly comprising an enclosure, a microfluidic preconcentrator, connectors and a means for holding the microfluidic preconcentrator inside the enclosure, a heating device and a cooling device, are provided.

A sealed pharmaceutical container including: a shoulder; a neck extending from the shoulder; a flange extending from the neck, the flange including: an underside surface extending from the neck; an outer surface extending from the underside surface, the outer surface defining an outer diameter of the flange; and an upper sealing surface extending between the outer surface and an inner surface defining an opening in the sealed pharmaceutical container, and a sealing assembly including: a stopper including a sealing portion extending over the upper sealing surface of the flange and covering the opening, and an insertion portion extending into the opening and in contact with the inner surface of the flange, the stopper having a first CTE; and a filler member encased within the stopper and having a second CTE, the second CTE being lower than the first CTE.

A sealed pharmaceutical container includes a shoulder, a neck extending from the shoulder, and a flange extending from the neck. The flange includes an inclined sealing surface defining an opening in the sealed pharmaceutical container. The sealed pharmaceutical container also includes a sealing assembly including a stopper extending over the sealing surface of the flange and a cap securing the stopper to the flange. The stopper has a glass transition temperature (T.sub.g) that is greater than or equal to −70° C. and less than or equal to −45° C. The sealing assembly maintains a helium leakage rate of the sealed pharmaceutical container of less than or equal to 1.4×10.sup.−6 cm.sup.3/s as the sealed pharmaceutical container is cooled to a temperature of less than or equal to −45° C.