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1. 发明专利

JPH05288755A 失效
公开(公告)号：JPH05288755A
公开(公告)日：1993-11-02
申请号：JP12123592
申请日：1992-04-14
申请人： KAO CORP
发明人： NARUKAWA YOSHIO , WAKASA MASANOBU , TANAKA MASAJI , WAKIZAKA TATSUJI , NUKII SHIYOUZOU , SUZUKI YUJI
IPC分类号： G01N35/02 , G01N35/04
摘要： PURPOSE:To obtain an automatic analyzer which can automate all the operations and processes, etc., from the uppermost stage to the lowest stage and housing of containers in the compact multi-stage constitution and process a large number of samples by continuously performing the operations and processes, etc., and housing of containers in parallel, with enhancing the processing speed. CONSTITUTION:This automatic analyzer automatically analyzes a plurality of samples while moving measuring containers 7. Tables 8, 51 where measuring containers 7 are set and which are used to move the measuring containers 7 are arranged in a plurality of stages every predetermined distance. The tables 8 and 51 are coupled by an elevator part 31 to transfer the measuring containers therebetween. At the same time, each device for a driving means and an analyzing means are connected and coupled to a computer which controls the devices and executes operations, so that a plurality of samples can be automatically continuously processed in parallel in this analyzer.

2. 发明专利

JPH0777524A TITRATION METHOD 失效
公开(公告)号：JPH0777524A
公开(公告)日：1995-03-20
申请号：JP24740493
申请日：1993-09-07
申请人： KAO CORP
发明人： NARUKAWA YOSHIO , WAKASA MASANOBU , TANAKA MASAJI , WAKIZAKA TATSUJI , NUKII SHIYOUZOU , SUZUKI YUJI
IPC分类号： G01N31/16
摘要： PURPOSE:To obtain a correct titration value regardless of temperature variation of liquid by calculating a corrected titration amount at a reference temperature based on the coefficient of volumetric expansion and temperature of titration liquid and then subjected the measurement value to temperature correction based on the corrected titration amount. CONSTITUTION:When correct concentration of a titration liquid at a reference temperature is known and an acid value is measured, for example, the titration liquid is added to a liquid to be measured using a delivery means of which delivery volume is detectable. A titration end-point is then determined based a potential variation ratio, a titration curve, etc., and a titration amount is measured at that moment. A titration amount Vts (ml) corrected for a reference temperature is then calculated from the coefficient of volumetric expansion and temperature of titration liquid according to a formula; Vts=Vt/(1+alphat.(Tt-To) [VT: titration amount (ml), alphat: coefficient of volumetric expansion of titration liquid, Tt: temperature of titration liquid ( deg.C)]. Acid value represents the weight (mg) of KOH required for neutralization of acid components contained in 1g of sample and a corrected acid value is determined according to a formula; acid value (mgKOH/g)=Vts.N.56.108/Ws [N: normality of titration liquid, Ws: sampling amount of sample].

3. 发明专利

JPH0688832A AUTOMATICALLY WEIGHING METHOD 失效
公开(公告)号：JPH0688832A
公开(公告)日：1994-03-29
申请号：JP26312292
申请日：1992-09-04
申请人： KAO CORP
发明人： NARUKAWA YOSHIO , WAKASA MASANOBU , TANAKA MASAJI , WAKIZAKA TATSUJI , NUKII SHIYOUZOU , SUZUKI YUJI
IPC分类号： G01G17/04 , G01N1/10 , G01N35/10 , G01N35/06
摘要： PURPOSE:To weigh a liquid by an arbitrary aimed weight with high accuracy by collecting the liquid by a fixed volume which does not exceed the aimed weight and calculating the additional amount of the liquid to be collected required for the aimed weight based on the apparent density of the liquid. CONSTITUTION:During the first operation, the apparent density of a sample liquid is assumed at '1' and the liquid is collected by the volume V1 decided from V1(ml)=WXR1 in accordance with a ratio R1 (R1=0.5 for ordinary liquid) preset to an aimed weight W(g). Then the apparent density D of the liquid is found from D(g/ml)=W1/V1. After finding the density D, the second (additional) volume V2 to be collected of the liquid is decided from V2=W/D-V1. When the liquid is collected by the volume V2 and added to the first collected amount, the liquid can be measured by the aimed volume W. The weighing accuracy can be improved further when the liquid is collected by a volume V3=R2V2 (R2=0.5-0.99) as the second collecting amount and the volume V3 is added to the first collected amount. Then, after measuring the total weight W2, the liquid is collected by a third (additional) collecting volume V4=(W-W2)/D and the volume V4 is added to the first and second collected amounts.

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