公开(公告)号：US06174728B1

公开(公告)日：2001-01-16

申请号：US09054461

申请日：1998-04-03

申请人： Daniel Ben-David ,  Charles L. Laughinghouse ,  James K. Tusa ,  Werner Ziegler ,  Herbert Kroneis ,  Ewald Jöbstl

发明人： Daniel Ben-David ,  Charles L. Laughinghouse ,  James K. Tusa ,  Werner Ziegler ,  Herbert Kroneis ,  Ewald Jöbstl

IPC分类号： G01N3100

CPC分类号： G01N21/4785 ,  Y10T436/10 ,  Y10T436/101666 ,  Y10T436/102499 ,  Y10T436/105831 ,  Y10T436/106664 ,  Y10T436/108331

摘要： A control or calibration standard for use with instruments for the optical measurement of the hemoglobin content in blood samples, features scattering particles or beads dispersed in aqueous electrolyte solution. To prevent sedimentation of the beads during storage, they have a mean diameter of

摘要翻译： 用于血液样品中血红蛋白含量的光学测量仪器的控制或校准标准，散布在水性电解质溶液中的散射颗粒或珠粒。 为了防止在储存期间珠的沉降，它们的平均直径<0.6μm，优选约0.3μm，体积浓度<1％，优选<0.3％。 为了防止长期的聚集，配方中可以包含具有添加的抗氧化剂的非离子表面活性剂。

公开(公告)号：US4920550A

公开(公告)日：1990-04-24

申请号：US125395

申请日：1987-11-25

申请人： James P. Olivier ,  Mary F. Kane ,  Clyde Orr, Jr. ,  Charles L. Laughinghouse ,  Jack J. Wagner ,  Samuel V. Tidwell

发明人： James P. Olivier ,  Mary F. Kane ,  Clyde Orr, Jr. ,  Charles L. Laughinghouse ,  Jack J. Wagner ,  Samuel V. Tidwell

IPC分类号： G01N23/00 ,  A61B5/145 ,  A61B5/1459 ,  A61B5/1491 ,  G01N1/00 ,  G01N15/02 ,  G01N15/04 ,  G01N23/02 ,  G01N23/06 ,  G01N23/10

CPC分类号： G01N23/10 ,  G01N15/04 ,  G01N15/02 ,  G01N35/1095

摘要： An x-ray sedimentation particle size analyzer in which data is taken only at particular positions along the sedimentation cell, and each such position is individually calibrated. Presentation of the data in the form of a particle size distribution curve can be accomplished very accurately using interpolation techniques. The sedimentation cell design is free of the effects of undesirable density gradients, capable of detecting and removing bubbles, capable of attaining a highly uniform dispersion of sample prior to sedimentation, and including a safety interlock device for blocking x-ray projection when the cell is being accessed.