公开(公告)号：WO2002066966A1

公开(公告)日：2002-08-29

申请号：PCT/US2002/000272

申请日：2002-01-04

申请人： CALIFORNIA ANALYTICAL INSTRUMENTS, INC. ,  MATHEWS, Loren, T. ,  NETI, Radhakrishna, M.

发明人： MATHEWS, Loren, T. ,  NETI, Radhakrishna, M.

IPC分类号： G01N21/75

CPC分类号： G01N33/0042 ,  G01N21/1702 ,  G01N33/0018 ,  G01N2021/3174 ,  Y02A50/248

摘要： Method and apparatus for the determination of total sulfur is described. The method of the present invention for the determination of total sulfur comprising the steps of (1) diluting a sample of a gas in a ozone containing atmosphere to oxidize the sample to form sulfur dioxide from the oxidizable sulfur containing components thereof, (2) subjecting the oxidized sample to infrared radiation at a wavelength selected for the absorption thereof by sulfur dioxide and (3) determining the sulfur content as a function of the infrared absorption. The sulfur dioxide is determined indirectly utilizing methodologies such as nondispersive infrared, or Fourier transformation infrared technology may be utilized in determining the concentration of SO 2 in the sample. The apparatus of the present invention includes a diluter (12) for the dilution of the sample gas with an oxygen containing gas and for the control of the flow rate of the diluted gas being monitored. The diluter communicates with a SO 2 detection unit (24) for the determination and read out of the sulfur content of the monitored gas sample as the result of the absorption of infrared radiation by the sulfur dioxide of the sample gas.

摘要翻译： 描述了测定总硫的方法和装置。 本发明的用于确定总硫的方法包括以下步骤：（1）稀释含臭氧气氛中的气体样品，以使样品氧化，从其可氧化的含硫组分形成二氧化硫;（2） 氧化样品到被二氧化硫吸收的波长处的红外辐射，和（3）确定作为红外吸收的函数的硫含量。 间接地使用诸如非分散红外线的方法来确定二氧化硫，或者可以使用傅立叶变换红外技术来确定样品中SO 2的浓度。 本发明的装置包括稀释器（12），用于用含氧气体稀释样品气体并用于控制被监测的稀释气体的流量。 稀释器与SO2检测单元（24）通信，用于由于样品气体的二氧化硫吸收红外辐射的结果来确定和读出被监测的气体样品的硫含量。

公开(公告)号：WO2002054039A3

公开(公告)日：2002-07-11

申请号：PCT/US2001/050116

申请日：2001-12-21

申请人： CALIFORNIA ANALYTICAL INSTRUMENTS, INC. ,  MATHEWS, Loren, T. ,  NETI, Radhakrishna, M.

发明人： MATHEWS, Loren, T. ,  NETI, Radhakrishna, M.

IPC分类号： G01N21/76

摘要： A chemiluminescence analyzer includes a reaction cell, (shown generally as 10), comprising a manifold body comprising a manifold section (16) and a reaction chamber section (18) that includes the reaction chamber (50). The manifold section (16) communicates with a source of reagent ozone through a line (12) and with a source of sample through a line (14). The lines, (12 and 14), enter the manifold section (16) of the reaction cell (10) in parallel or coaxial relationship so the streams of ozone and sample do not impinge one another. The stream of sample and ozone are combined in the manifold section (16) and the sample and ozone flow coaxially to the reaction chamber section (18) of the reaction cell (10). In the reaction chamber (18) the sample and ozone react with the emission of light from the reaction chamber (18). The emitted light from the reaction chamber (18) is focused by the dimensions of the reaction cell opening so that the beam is approximately the same size as the sensing area of the phot detector.

公开(公告)号：WO1996006349A1

公开(公告)日：1996-02-29

申请号：PCT/US1995010895

申请日：1995-08-23

申请人： CALIFORNIA ANALYTICAL INSTRUMENTS, INC.

发明人： CALIFORNIA ANALYTICAL INSTRUMENTS, INC. ,  MATHEWS, Loren, T. ,  MEDICI, James, L.

IPC分类号： G01N31/12

CPC分类号： G01N30/68 ,  G01N27/626

摘要： A flame ionization detector consisting of a burner assembly (10) which includes a precombustion chamber (54) for mixing the fuel and sample gas, a combustion chamber (56) having a burner nozzle (60) for fluid communication with the precombustion chamber. An annular collector ring (70) and a spring loaded electrode collector (73) to which a potential is applied for the collection of ions are disposed in the combustion chamber (56). The collector (70) is connected to an electrometer (78) for the amplification of a current created by the migration of carbon ions to the collector (70) during combustion. Critical flow orifices (14, 24 and 34) disposed in the lines (12, 22 and 32) are used to deliver fuel gas, air, and sample gas to the flame ionization detector. The sample line (32) communicates with a bypass line (42) and capillary (44) for a passage of a major portion the sample gas directly to an exhaust vent (58).

摘要翻译： 一种由燃烧器组件（10）组成的火焰离子化检测器，燃烧器组件（10）包括用于混合燃料和样品气体的预燃室（54），具有用于与预燃室流体连通的燃烧器喷嘴（60）的燃烧室（56）。 在燃烧室（56）中设置环状集电环（70）和负载弹簧的电极收集器（73），在其上施加电位用于收集离子。 收集器（70）连接到静电计（78），用于放大在燃烧期间由碳离子迁移到收集器（70）而产生的电流。 设置在管线（12,22和32）中的临界流通孔（14,24和34）用于将燃料气体，空气和样品气体输送到火焰离子化检测器。 样品管线（32）与旁路管线（42）和毛细管（44）连通，用于将样品气体的主要部分直接通向排气口（58）。