公开(公告)号：US3898501A

公开(公告)日：1975-08-05

申请号：US46852874

申请日：1974-05-09

Applicant: HITACHI LTD

Inventor： HOSOYA AKIRA ,  TADOKORO MAKOTO ,  TOMITA SADAMI ,  ARAI YOJI ,  MAYAMA SHINJI

IPC: H01J61/09 ,  G01N21/01 ,  H01J17/06 ,  H01J61/08

CPC classification number: H01J17/066 ,  H01J2893/0066

Abstract: In a lamp used as light source for atomic light absorption analysis, comprising a cathode having a hollow therein, an anode disposed in the vicinity thereof, a hermetical envelope to enclose the cathode and the anode, and gaseous atmosphere contained in envelope, the cathode is formed of an alloy composed of silver and at least one metal having a melting point equal to or lower than 500*C and emitting the same spectral line as the metal to be analyzed so that the cathode is prevented from being deformed and the luminous intensity and the analytic accuracy are improved.

Abstract translation: 在用作原子光吸收分析的光源的灯中，包括其中具有中空的阴极，设置在其附近的阳极，包围阴极和阳极的气密外壳以及包封在气体中的气体，阴极是 由银和至少一种熔点等于或低于500℃的金属组成的合金形成，并且发射与待分析的金属相同的光谱线，从而防止阴极变形，并且发光强度和 分析精度提高。