公开(公告)号：WO1980000371A1

公开(公告)日：1980-03-06

申请号：PCT/US1979000541

申请日：1979-07-25

Applicant: BECKMAN INSTR INC

Inventor： BECKMAN INSTR INC ,  MILLER W

IPC: G01N03/02

CPC classification number: G01T7/08

Abstract: A method of conducting solid phase radioimmunoassay (RIA) using a combined reaction/filter/- counting vial (10) in each step of the assay. The assay reaction is conducted within the vial (10), the vial filter (16) is employed to trap a radio-labeled precipitate derived from the reaction, and the vial (10) is placed in a nuclear counter to measure the radio-labeled precipitate.

Abstract translation: 在测定的每个步骤中使用组合的反应/过滤器/计数小瓶（10）进行固相放射免疫测定（RIA）的方法。 测定反应在小瓶（10）内进行，小瓶过滤器（16）用于捕获来自反应的放射性标记的沉淀物，并将小瓶（10）置于核计数器中以测量放射性标记 沉淀。

公开(公告)号：WO1980000190A1

公开(公告)日：1980-02-07

申请号：PCT/US1979000478

申请日：1979-07-02

Applicant: BECKMAN INSTR INC

Inventor： BECKMAN INSTR INC ,  ANDERSON R

IPC: G01J03/30

CPC classification number: G01N21/62

Abstract: In a system for analyzing the elemental or molecular composition of a sample where the sample components are excited through collision with an active metastable gaseous species, the excited sample components emitting a characteristic wave length of light which may be detected, the system including a microwave cavity (16) through which the gaseous species flows and a microwave source (17) coupled to the cavity (16), the microwave discharge exciting the gaseous species, there is disclosed an improved gas and sample introduction system (30) wherein a liquid sample and a water soluble compound are mixed with a diluent (38) and aspirated (33) into the flow, upstream of the microwave cavity (16), onto a heated filament (35), the compound being capable of releasing nitrogen or some other suitable gas molecules at high temperature and low pressure whereupon formation of nitrogen and vaporization of the sample occur simultaneously.

Abstract translation: 在用于分析样品组分通过与活性亚稳态气体物质碰撞而激发的样品的元素或分子组成的系统中，激发的样品组分发射可被检测的特征波长的光，该系统包括微波腔 （16），气体物质流过的微波源（17）和耦合到空腔（16）的微波源（17），激发气态物质的微波放电，公开了一种改进的气体和样品引入系统（30），其中液体样品和 将水溶性化合物与稀释剂（38）混合并吸入（33）到微波空腔（16）上游的流中到加热的长丝（35）上，该化合物能够释放氮气或一些其它合适的气体 分子在高温和低压下，因此氮的形成和样品的蒸发同时发生。

公开(公告)号：WO1979000760A1

公开(公告)日：1979-10-04

申请号：PCT/US1979000163

申请日：1979-03-14

Applicant: BECKMAN INSTR INC

Inventor： BECKMAN INSTR INC ,  CORWIN W

IPC: C08L33/24

CPC classification number: C09D11/16

Abstract: A washable non-splatter ink for use in oscillographic type pen recorders is disclosed. The ink is characterized by being stable at room temperature for extended periods of time, thus not requiring refrigeration for the maintenance of stability. The ink contains a high molecular weight polyacrylamide rather than polyethylene oxide as a pituity agent to stop splatter of the ink at fast writing speeds. The polyacrylamide allows the use of washable acid dyes. The inclusion of an unsaturated alcohol, such as butyne diol acts to retard the oxidation of the pituity, thus stabilizing the pituity against aging degradation.

Abstract translation: 公开了一种用于示波型笔式记录器的可洗涤非喷溅墨水。 油墨的特征在于在室温下长时间稳定，因此不需要制冷以维持稳定性。 油墨含有高分子量聚丙烯酰胺而不是聚环氧乙烷作为成分剂，以快速写入速度来阻止油墨的飞溅。 聚丙烯酰胺允许使用可洗涤的酸性染料。 包含不饱和醇（例如丁二醇）用于阻止沉淀物的氧化，从而稳定抗老化退化的特性。

公开(公告)号：WO1980000273A1

公开(公告)日：1980-02-21

申请号：PCT/US1979000476

申请日：1979-07-02

Applicant: BECKMAN INSTR INC

Inventor： BECKMAN INSTR INC ,  ANDERSON R ,  STUDHOLME R

IPC: G01J03/30

CPC classification number: G01N21/62

Abstract: In a system for analyzing the elemental or molecular composition of a sample wherein the sample components are excited through collision with an active metastable gaseous species, the excited sample components emitting a characteristic wavelength of light which may be detected, the system including a microwave cavity (16) through which the gaseous species flows and a microwave source (17) coupled to the cavity, the microwave discharge exciting the gaseous species, an improved liquid sample introduction system (30) which causes complete vaporization and disassociation of the sample. The sample is preferably aspirated directly into the microwave discharge within which the active gas is generated. A sample and gas injection probe (33 and 34) is also disclosed.

公开(公告)号：WO1980000201A1

公开(公告)日：1980-02-07

申请号：PCT/US1979000477

申请日：1979-07-02

Applicant: BECKMAN INSTR INC

Inventor： BECKMAN INSTR INC ,  BROWN J

IPC: G06G07/66

CPC classification number: G06G7/66 ,  G05B1/02 ,  G05B21/02 ,  G05D23/1902 ,  G05D23/1913 ,  G05D23/24 ,  Y10T307/484 ,  Y10T307/957

Abstract: Circuit (10) for generating an error voltage (26) which is proportional to the difference between a desired value of a physical parameter and the actual value of the physical parameter. The circuit (10) operates by alternately switching the current from a source (13) through a fixed resistor (11) and a variable resistor (12), the resistance value of which changes as a function of the physical parameter to be controlled. The current is switched between the two resistors so that the average voltage generated across the variable resistor would be equal to the average voltage generated across the fixed resistor if the physical parameter had the desired value. By determining the difference between the average voltage across the resistors, the error voltage (26) can be generated for controlling the physical parameter.

Abstract translation: 用于产生与物理参数的期望值与物理参数的实际值之间的差成比例的误差电压（26）的电路（10）。 电路（10）通过交替地切换来自源极（13）的电流通过固定电阻器（11）和可变电阻器（12），其电阻值作为要控制的物理参数的函数而变化。 电流在两个电阻之间切换，使得如果物理参数具有所需值，则跨可变电阻产生的平均电压将等于固定电阻上产生的平均电压。 通过确定电阻器两端的平均电压之差，可以产生误差电压（26）以控制物理参数。

公开(公告)号：WO1980000188A1

公开(公告)日：1980-02-07

申请号：PCT/US1979000339

申请日：1979-05-18

Applicant: BECKMAN INSTR INC

Inventor： BECKMAN INSTR INC ,  GREENE M ,  HAUNOLD O

IPC: G01J03/02

CPC classification number: G01N21/0332 ,  G01N21/763 ,  G01N2201/0648

Abstract: A sample holder and shutter assembly (20) for photometers in which a stationary sample chamber body (40) is mounted in close proximity to a photosensitive device (18). A light path is provided from the sample chamber (53) to the photosensitive device (18) and shutter means is provided for selectively interrupting and opening the light path between the photosensitive device (18) and the sample chamber (53) without moving the sample chamber. Heat exchange means including a heat pump (63) and a heat reservoir (68) are provided for maintaining a desired temperature in the sample chamber (53). The sample chamber body (40) is thermally connected to said heat pump (63) and is preferably thermally isolated from the means mounting it. In one embodiment, the heat pump (63) and heat reservoir (68) are flexibly connected.