摘要:
A connector in which a housing and a retainer are coupled with sufficient strength when the connector is reduced in scale. In this connector, provisional anchoring pieces and main anchoring pieces are provided at two end portions of an inner peripheral wall of an insertion hole formed in the housing, with lengths along a direction that intersects a direction of insertion of the retainer into the insertion hole. At outer sides of two end portions of the retainer, anchorage pawls, which are formed to be engageable with the main anchoring pieces and the provisional anchoring pieces, are provided with lengths along the intersecting direction. With this structure, when the retainer is inserted into the insertion hole of the housing, the anchorage pawls engage, at two end portions of the connector, with the provisional anchoring pieces and with the main anchoring pieces.
摘要:
In order to provide an atmospheric pressure ionization mass spectrometer system which allows for equal high sensitivity analysis for LCs with different flow rates, there is provided an atmospheric pressure ionization mass spectrometer system comprising: an atmospheric pressure ion source for ionizing a sample solution under atmospheric pressure, a mass spectrometer for mass analyzing the ions in an evacuated space, a fine hollow tube on a partition wall between the atmospheric pressure ion source and the mass spectrometer, the ions generated in the atmospheric pressure ion source being introduced through the fine tube into the mass spectrometer to be mass analyzed, wherein the fine tube consists of a first fine tube and a second fine tube which are different in diameter, the second fine tube being inserted in the first fine tube, the ions and gas generated in the atmospheric pressure ion source are introduced into the mass spectrometer through the second fine tube, and a gas is fed into a space between the first fine tube and the second fine tube. The present invention allows for high sensitivity measurements of mass spectrometer systems including the micro LC, CE, and nanospray with very low flow rate and the conventional LC with much higher flow rate. In addition, the clogged fine tube can be exchanged without stopping the vacuum pumping, providing the simplified maintenance.
摘要:
Depending on the RF driving voltage amplitude value and the frequency of each frequency component of wideband auxiliary AC voltages, the wideband auxiliary AC voltage comprising plural different frequency components is optimized so that undesired ions having mass-to-charge ratios within the required range will be resonantly ejected from the ion trap electrodes.
摘要:
A mass analysis apparatus comprising a first ion source which ionizes a sample and produces sample ions, a second ion source which produces reactant ions having a polarity opposite to the polarity of the sample ions, and a mass spectrometer, wherein said second ion source is provided between said first ion source and said mass spectrometer apart from the axis of a flow of the sample ions discharged from said first ion source and emits reactant ions to the flow of sample ions discharged from said first ion source.
摘要:
The present invention relates to a portable terminal apparatus with a telephone function such as a portable telephone, and devises mounting of a camera module so as to combine multifunctionality and miniaturization in a high level. It includes a chassis, a camera module including a lens and an image pickup device, a circuit board placed and fixed on the chassis and a camera holder supporting the camera module and fixed on the circuit board to be on the chassis together with the circuit board, where the camera holder has an opening for the camera module to look in and a wall section surrounding the opening and surrounding a side face of the camera module to support the camera module.
摘要:
An ion trap/time-of-flight mass spectrometer, which can perform accurate mass measurement of a product ion based on MS/MS and MSn has an ion source for ionizing a sample, an ion trap capable of temporarily trapping ions, and a time-of-flight mass spectrometer. The ion source produces ions of the sample as a measurement target and ions of a reference sample each having a known mass value. A precursor ion is selected from among the ions of the measurement target sample, and the selected precursor ion is excited and fragmented in the ion trap to produce a product ion. The reference sample ions are introduced to and trapped in the ion trap. The trapped product ion and reference sample ions are expelled out of the ion trap and introduced to the time-of-flight mass spectrometer, thereby obtaining a mass spectrum.
摘要:
A plurality of picture frames is arranged as one group according to correlation between picture frames in a picture sequence. Then, a coding mode corresponding to each of the picture frames of the group is determined. Subsequently, preceding is performed according to the coding mode. Then, the coding of a picture is performed by controlling a coding parameter according to a result of the preceding and to the coding mode.
摘要:
Because of a low flow rate of the micro LC/MS, the dead volume or the diameter of a capillary tube must be minimized, and a sample and salt are likely to deposit in the capillary tube, with the result that clogging of the capillary tube and ESI nozzle often occurs. An electrospray ionization mass analysis apparatus and its system of the present invention predicts clogging, permit earlier cleaning or parts replacement, and detect clogging even if it has occurred, thereby suspending measurement and preventing samples from being introduced into an injector, with the result that waste of samples is avoided and effective data is ensured. The aforementioned electrospray ionization mass analysis apparatus directly coupled to the micro LC prevents a micro LC, piping and ESI capillary tube from being clogged, and records an alarm in the data and stops the system whenever clogging has occurred, whereby highly reliable direct coupling with micro LC is ensured. In the aforementioned electrospray ionization mass analysis apparatus and its system, a sample solution from a chromatograph is introduced into a capillary tube, and an electrospray ion source arranged for generating ions under atmospheric pressure generates ions, which are led into a mass spectrometer disposed in a vacuum chamber where the ion is subjected to mass analysis. The current value or strength of the ion having a specified mass in the sample solution is measured, and, when the current value has reduced below a threshold value, an error state is displayed.
摘要:
The object of the present invention is to provide an electrospray ionization mass analysis apparatus and the method thereof provided with an ESI ion source that can be directly coupled to a micro LC. The present invention provides an electrospray ionization mass analysis apparatus characterized in that a sample solution is led into a capillary tube, and high voltage is applied to the tip of this capillary tube, thereby allowing a spray ion flow of the aforementioned solution to be generated by an electrospray ion source provided therein. The ion flow generated by this ion source is led to an ion storage type spectrometer disposed in an vacuum chamber where it is subjected to mass sweeping, and the swept ion is detected by a detector so that a mass spectrum is obtained. This electrospray ionization mass analysis apparatus is further characterized by comprising a high voltage DC power source for application of the aforementioned high voltage formed by AC voltage superimposed on the DC voltage, and a AC power source. This invention ensures stable and highly sensitive ESI ionization to be performed at a flow rate ranging from several 10 &mgr;L/min to several &mgr;L/min.
摘要:
There are arranged an engine 10 having idle-stop control means and an automatic transmission 20 having as a hydraulic-pressure supply source a main pump 22 driven by the engine 10 to perform speed change control. There are arranged a bypass hydraulic passage 45 for ensuring communication between said main pump 22 and a point immediately before an engagement-pressure supply port of a forward engagement element L/C in the automatic transmission, a switching valve 44 on the bypass hydraulic passage 45 for allowing switching between the communicating state and the non-communicating state, and switching-valve control means for switching the switching valve 44 between the communicating state and the non-communicating state. With this, the main pump is stopped at idle-stop control to supply the hydraulic pressure required for restart, allowing smooth running.