公开(公告)号：US20100084572A1

公开(公告)日：2010-04-08

申请号：US12633304

申请日：2009-12-08

申请人： Eugene Tokhtuev ,  Christopher J. Owen ,  Viktor Slobodyan ,  Anatoly Skirda ,  Paul Schilling ,  Anna Pilipchenko ,  Paul R. Kraus ,  Katherine M. Sanville ,  Joseph Phillip Erickson

发明人： Eugene Tokhtuev ,  Christopher J. Owen ,  Viktor Slobodyan ,  Anatoly Skirda ,  Paul Schilling ,  Anna Pilipchenko ,  Paul R. Kraus ,  Katherine M. Sanville ,  Joseph Phillip Erickson

IPC分类号： G01N21/64

CPC分类号： G01N21/8507 ,  G01N21/6402 ,  G01N33/18

摘要： An ultraviolet (UV) fluorometric sensor measures a chemical concentration in a sample based on the measured fluorescence of the sample. The sensor includes a controller, at least one UV light source, and at least one UV detector. The sensor emits UV light in a wavelength range of 245-265 nm from the light source through the sample in an analytical area. The UV detector measures the fluorescence emission from the sample. The controller transforms output signals from the UV detector into fluorescence values or optical densities for one or more wavelengths in the wavelength range of 265-340 nm. The controller calculates the chemical concentration of the chemical in the sample based on the measured fluorescence emissions.

摘要翻译： 紫外线（UV）荧光传感器基于样品的测量荧光测量样品中的化学浓度。 传感器包括控制器，至少一个UV光源和至少一个UV检测器。 传感器在分析区域内通过样品从光源发射波长245-265 nm的紫外光。 UV检测器测量样品的荧光发射。 控制器将来自UV检测器的输出信号转换为在波长范围为265-340nm的一个或多个波长的荧光值或光密度。 控制器基于测量的荧光发射计算样品中化学品的化学浓度。

公开(公告)号：US07550746B2

公开(公告)日：2009-06-23

申请号：US11809208

申请日：2007-05-31

申请人： Eugene Tokhtuev ,  Christopher J. Owen ,  Viktor Slobodyan ,  Anatoly Skirda ,  Paul Schilling ,  Anna Pilipchenko ,  Paul R. Kraus ,  Katherine M. Sanville ,  Joseph Phillip Erickson

发明人： Eugene Tokhtuev ,  Christopher J. Owen ,  Viktor Slobodyan ,  Anatoly Skirda ,  Paul Schilling ,  Anna Pilipchenko ,  Paul R. Kraus ,  Katherine M. Sanville ,  Joseph Phillip Erickson

IPC分类号： G01N21/64 ,  G01J3/00

CPC分类号： G01N21/8507 ,  G01N21/6402 ,  G01N33/18

摘要： An ultraviolet (UV) fluorometric sensor measures a chemical concentration in a sample based on the measured fluorescence of the sample. The sensor includes a controller, at least one UV light source, and at least one UV detector. The sensor emits UV light in a wavelength range of 245-265 nm from the light source through the sample in an analytical area. The UV detector measures the fluorescence emission from the sample. The controller transforms output signals from the UV detector into fluorescence values or optical densities for one or more wavelengths in the wavelength range of 265-340 nm. The controller calculates the chemical concentration of the chemical in the sample based on the measured fluorescence emissions.

摘要翻译： 紫外线（UV）荧光传感器基于样品的测量荧光测量样品中的化学浓度。 传感器包括控制器，至少一个UV光源和至少一个UV检测器。 传感器在分析区域内通过样品从光源发射波长245-265 nm的紫外光。 UV检测器测量样品的荧光发射。 控制器将来自UV检测器的输出信号转换为在波长范围为265-340nm的一个或多个波长的荧光值或光密度。 控制器基于测量的荧光发射计算样品中化学品的化学浓度。

公开(公告)号：US20090098022A1

公开(公告)日：2009-04-16

申请号：US12247767

申请日：2008-10-08

申请人： Eugene Tokhtuev ,  Christopher J. Owen ,  Viktor Slobodyan ,  William M. Christensen ,  Paul Schilling ,  Joseph Phillip Erickson

发明人： Eugene Tokhtuev ,  Christopher J. Owen ,  Viktor Slobodyan ,  William M. Christensen ,  Paul Schilling ,  Joseph Phillip Erickson

IPC分类号： G01N21/75 ,  G01D18/00

CPC分类号： G01N21/78 ,  G01N21/274 ,  G01N21/51 ,  G01N33/18

摘要： A multi-channel device includes up to three channels for optical testing of liquid samples. The liquid sample(s) may include surface water, drinking water, processed water or the like. The multi-channel device may include a turbidity channel and a color channel that measure turbidity and color, respectively, of a liquid sample using spectrographic analysis. The multi-channel device may also include a colorimetric channel that measures the concentration of various analytes in a liquid sample, such as free chlorine, total chlorine, copper and phosphate.

摘要翻译： 多通道器件最多包含三个通道用于液体样品的光学测试。 液体样品可以包括地表水，饮用水，加工水等。 多通道装置可以包括浊度通道和彩色通道，分别使用光谱分析来测量液体样品的浊度和颜色。 多通道装置还可以包括比色通道，其测量液体样品中各种分析物的浓度，例如游离氯，总氯，铜和磷酸盐。

公开(公告)号：US20060121614A1

公开(公告)日：2006-06-08

申请号：US11299784

申请日：2005-12-13

申请人： Eugene Tokhtuev ,  Anatoly Skirda ,  Viktor Slobodyan ,  Christopher Owen

发明人： Eugene Tokhtuev ,  Anatoly Skirda ,  Viktor Slobodyan ,  Christopher Owen

IPC分类号： G01N21/93

CPC分类号： G01N21/645 ,  G01N21/15 ,  G01N21/276 ,  G01N21/278 ,  G01N21/6486 ,  G01N21/8507 ,  G01N33/1826 ,  G01N2021/6417 ,  G01N2021/6419 ,  G01N2021/6421 ,  G01N2021/6478 ,  G01N2201/0218 ,  G01N2201/024 ,  G01N2201/0627 ,  G01N2201/0693 ,  Y10T29/49 ,  Y10T29/49002 ,  Y10T436/108331

摘要： A multichannel fluorosensor includes an optical module and an electronic module combined in a watertight housing with an underwater connector. The fluorosensor has an integral calibrator for periodical sensitivity validation of the fluorosensor. The optical module has one or several excitation channels and one or several emission channels that use a mutual focusing system. To increase efficiency, the excitation and emission channels each have a micro-collimator made with one or more ball lenses. Each excitation channel has a light emitting diode and an optical filter. Each emission channel has a photodiode with a preamplifier and an optical filter. The electronic module connects directly to the optical module and includes a lock-in amplifier, a power supply and a controller with an A/D converter and a connector. The calibrator provides a response proportional to the excitation intensity, and matches with spectral parameter of fluorescence for the analyzed fluorescent substance.

公开(公告)号：US06486474B1

公开(公告)日：2002-11-26

申请号：US09374719

申请日：1999-08-13

申请人： Christopher J. Owen ,  Eugene Tokhtuev ,  Anatoly Skirda ,  Robert M. Carlson ,  Alexander Tokhtuev ,  Viktor Slobodyan

发明人： Christopher J. Owen ,  Eugene Tokhtuev ,  Anatoly Skirda ,  Robert M. Carlson ,  Alexander Tokhtuev ,  Viktor Slobodyan

IPC分类号： G01N110

CPC分类号： G01N21/3504 ,  G01J3/0208 ,  G01J3/0232 ,  G01J3/42 ,  G01N21/031

摘要： An infrared spectrometer for the determination of isotopic ratios of gaseous compounds includes a broad-band infrared light source, a spectral selector, a sample compartment, an infrared detector, and a processor. The spectral selector selectively transmits a wavelength window of infrared light covering a range of wavelengths in which the wavelength window can be selected alternatively to overlap with a wavelength range primarily absorbed by a compound with a first isotope or by the compound with a second isotope. The sample compartment holds a gas sample and includes a gas inlet and a gas outlet. The infrared spectrometer can be used to detect isotopic ratios of carbon dioxide, where enhancement of 13CO2 can indicate metabolic activity of an infection, for example by H. pylori, or of specific enzymes. Preferred embodiments use a particular multipass optical cell that includes a field mirror and a multi-segment objective mirror.

摘要翻译： 用于测定气体化合物的同位素比率的红外光谱仪包括宽带红外光源，光谱选择器，样品室，红外检测器和处理器。 频谱选择器选择性地透射覆盖波长范围的红外光的波长窗口，其中波长窗口可以选择性地与主要被具有第一同位素的化合物吸收的波长范围重叠，或者与具有第二同位素的化合物重叠。 样品室容纳气体样品，并包括气体入口和气体出口。 红外光谱仪可用于检测二氧化碳的同位素比例，其中13CO2的增强可以指示感染的代谢活动，例如幽门螺杆菌或特异性酶。 优选实施例使用包括场反射镜和多分段物镜反射镜的特定多通道光学单元。