摘要:
There are provided a chip for micro chemical systems which can obviate the need of alignment at every measurement and can improve the measurement sensitivity and reduce the variation of measurement, and a micro chemical system using the chip. A thermal lens spectrometry system 10 comprises: a micro chemical chip 2 having a groove 1 into which a sample solution is injected; a rod lens 3 disposed on the micro chemical chip 2 at a predetermined spacing above the groove 1; a lens holder 9 disposed above the micro chemical chip 2; a securing section 4; an optical fiber 5; a ferrule 6 secured by the securing section 4 above the rod lens 3; a light source unit 7 connected to the optical fiber 5, and a detection device 8 disposed below the micro chemical chip 2. The securing section 4 comprises a seating 32 laid on the micro chemical chip 2, and a metal split sleeve 33 for fitting the ferrule 6 and the lens holder 9 at the outside thereof.
摘要:
A fluorescence analysis optical multiplexer/demultiplexer, a fluorescence analysis optical module, a fluorescence analyzer, a fluorescence/photothermal conversion spectroscopic analyzer, and a fluorescence analysis chip, according to which LIF analysis can be carried out easily and with high sensitivity, and moreover photothermal conversion spectroscopic analysis can be carried out easily and simultaneously with the LIF analysis. A microchemical system 100 as the fluorescence analyzer is comprised of a fluorescence analysis optical module 100a, a probe 50 that condenses exciting light onto a sample solution in a channel 204 inside a fluorescence analysis chip 20, and a sample stage 21 on which the fluorescence analysis chip 20 is mounted. The fluorescence analysis optical module 100a is comprised of an exciting light source 53 that outputs exciting light of dominant wavelength λ1, a fluorescence analysis optical multiplexer/demultiplexer 56 for use in the fluorescence analyzer which analyzes fluorescence of dominant wavelength λ2 (λ2>λ1) emitted from the sample upon the sample being irradiated with the exciting light via the probe 50, a detector 54 that receives the fluorescence, an optical fiber 106 that connects the fluorescence analysis optical multiplexer/demultiplexer 56 to the exciting light source 53, an optical fiber 107 that connects the fluorescence analysis optical multiplexer/demultiplexer 56 to the probe 50, and an optical fiber 108 that connects the fluorescence analysis optical multiplexer/demultiplexer 56 to the detector 54. The channel 204 through which the sample solution is passed is coated with a reflective metal film 205.
摘要:
A photothermal conversion spectroscopic analysis method which is capable of performing analysis, measurement and detection with high sensitivity. A sample flows in a channel. A exciting light and a detecting light are exited. A gradient refractive index rod lens converges the exited light and forms a focal point at a position in or close to the channel. Intensity of the exited light and passing through the channel are detected. A depth of the channel is not less than two time as large as a difference in distance between focal positions of the exciting light and the detecting light.
摘要:
There is provided a detection system capable of simultaneously detecting a plurality of fluorescences or phosphorescences having different dominant wavelengths generated from a minute region and a probe therefor. A fluorescence detection system includes a probe having a lens and optical fibers and arranged on one end thereof. The probe receives excitation light with a dominant wavelength and excitation light with a dominant wavelength at one end of the lens and converges the excitation lights at the solution containing Cy3 and Cy5 in a channel inside a microchemical chip and the probe receives fluorescence with a dominant wavelength and fluorescence with a dominant wavelength at the other end of the lens and converges the fluorescences at the tips of the optical fibers.
摘要:
There is provided a detection system capable of simultaneously detecting a plurality of fluorescences or phosphorescences having different dominant wavelengths generated from a minute region and a probe therefor. A fluorescence detection system includes a probe having a lens and optical fibers and arranged on one end thereof. The probe receives excitation light with a dominant wavelength and excitation light with a dominant wavelength at one end of the lens and converges the excitation lights at the solution containing Cy3 and Cy5 in a channel inside a microchemical chip and the probe receives fluorescence with a dominant wavelength and fluorescence with a dominant wavelength at the other end of the lens and converges the fluorescences at the tips of the optical fibers.
摘要:
A detection method that can measure a plurality of measured substances in a fluid test sample at the same time, easily perform qualitative analysis and quantitative analysis, and reduce measurement errors between excitation energies of the measured substances, and a microchemical system using the detection method. A probe light with a wavelength of 780 nm CW-oscillated from a probe light source 16 is irradiated on measured substances in a minute channel 1, excitation lights with wavelengths of 658 nm and 532 nm, respectively, are modulated into plurality of flashing excitation lights with frequencies 1 kHz and 1.2 kHz and a duty factor of 50% and irradiated on the measured substances in the minute channel 1, the probe light refracted by a thermal lens formed by the irradiated flashing excitation lights is detected with respect to individual frequency components at the same time, and a signal of the detected probe light is guided from a PD 21 to a PC 24 as a signal processing apparatus via an IV amplifier 22. The PC 24 carries out FFT processing to measure the intensity of the signal with respect to individual frequency components.
摘要:
A microchemical system is disclosed that is capable of controlling the flow of a sample solution flowing through a channel in a microchip. In the microchemical system 1, a microchip 7 has therein a T-shaped channel 4 comprised of a main channel 2, a sub-channel 3, and a merging portion 4 where the main channel 2 and the sub-channel 3 merge together. Panel heaters 8 and 9 are installed in a position such as to be able to heat the interior of the sub-channel 3. The sub-channel 3 and the merging portion are subjected to hydrophobic modification treatment. Water is supplied into the main channel 2, and air is supplied into the sub-channel 3.
摘要:
A fluorescence analysis optical multiplexer/demultiplexer, a fluorescence analysis optical module, a fluorescence analyzer, a fluorescence/photothermal conversion spectroscopic analyzer, and a fluorescence analysis chip, according to which LIF analysis can be carried out easily and with high sensitivity, and moreover photothermal conversion spectroscopic analysis can be carried out easily and simultaneously with the LIF analysis. A microchemical system 100 as the fluorescence analyzer is comprised of a fluorescence analysis optical module 100a, a probe 50 that condenses exciting light onto a sample solution in a channel 204 inside a fluorescence analysis chip 20, and a sample stage 21 on which the fluorescence analysis chip 20 is mounted. The fluorescence analysis optical module 100a is comprised of an exciting light source 53 that outputs exciting light of dominant wavelength λ1, a fluorescence analysis optical multiplexer/demultiplexer 56 for use in the fluorescence analyzer which analyzes fluorescence of dominant wavelength λ2 (λ2>λ1) emitted from the sample upon the sample being irradiated with the exciting light via the probe 50, a detector 54 that receives the fluorescence, an optical fiber 106 that connects the fluorescence analysis optical multiplexer/demultiplexer 56 to the exciting light source 53, an optical fiber 107 that connects the fluorescence analysis optical multiplexer/demultiplexer 56 to the probe 50, and an optical fiber 108 that connects the fluorescence analysis optical multiplexer/demultiplexer 56 to the detector 54. The channel 204 through which the sample solution is passed is coated with a reflective metal film 205.
摘要:
In a supply passage assembly having a toner passage arranged under a toner bottle for conveying toner supplied from the toner bottle to a developing unit arranged below, a toner conveying pipe for forming the toner passage is formed of an elastic material and a toner conveying pipe deforming member is arranged adjacent to the toner conveying pipe for elastically deforming the toner conveying pipe.
摘要:
An electrical junction box has a casing for housing a circuit board on which electrically conductive paths are formed. Fuse-receiving sections in an upper wall of the casing are adapted to receive a mating member. Receiving ribs inward from an inside of a side wall of the casing at a position below the fuse-receiving sections to receive water that enters the casing from the fuse-receiving sections, guide ribs project inward from an inside of the side wall provided with the receiving ribs and extend from end edges of the receiving ribs to guide the water that is received on the receiving ribs to a bottom wall of the casing. A bottom wall of the casing defines drain holes.