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1. 发明授权

US11885781B2 Titration apparatus and titration method 有权
公开(公告)号：US11885781B2
公开(公告)日：2024-01-30
申请号：US17124013
申请日：2020-12-16
申请人： Endress+Hauser Conducta GmbH+Co. KG
发明人： Ulrich Kathe , Daniel Schweitzer , Michael Ingelmann
IPC分类号： G01N31/16 , G01N1/14 , G01N35/10
CPC分类号： G01N31/166 , G01N1/14 , G01N35/1016 , G01N2001/1427
摘要： A titration apparatus includes a titration measuring cell with a titration vessel, a valve device, and a first pump for sucking liquid through a first fluid line into a temporary storage container and transporting it via a second fluid line into the titration vessel. The temporary storage container is arranged in a fluid path between the first pump and the valve device. A third fluid line connects the first pump to the temporary storage container and is filled with a working liquid that does not affect the titration. A second pump conveys a volumetric solution into the titration vessel. An electronic controller controls the first and the second pumps and the valve device to convey a liquid from the first liquid supply into the temporary storage container to transport the liquid into the titration vessel and transport the volumetric solution into the titration vessel to carry out titration.

2. 发明授权

US10871475B2 Automated titration in a recirculating fluid system 有权
公开(公告)号：US10871475B2
公开(公告)日：2020-12-22
申请号：US16141396
申请日：2018-09-25
申请人： BECS Technology, Inc.
发明人： Roger Chamberlain , Chris Edmiston , Brett Steinbrueck , Don Williams
IPC分类号： G01N31/16 , G01N33/18 , G01N31/22 , G01N35/00 , C02F1/66 , C02F1/00 , C02F103/42 , G01N27/416 , G01N35/10
CPC分类号： G01N31/166 , C02F1/008 , C02F1/66 , G01N31/221 , G01N33/18 , G01N35/00663 , C02F2103/42 , C02F2209/005 , C02F2209/04 , C02F2209/06 , C02F2209/07 , C02F2209/40 , C02F2303/14 , G01N27/4167 , G01N27/4168 , G01N35/1002 , G01N2035/00673
摘要： A method for determining a concentration of a chemical of interest in a recirculating analyte system includes the steps of selecting a first indicator threshold, measuring the flow rate of the recirculating analyte system, controllably adding a known amount of reagent to the recirculating analyte system at an known flow rate, repetitively measuring an indicator of the recirculating analyte system downstream from the addition of the reagent, and computing the concentration of the chemical of interest of the recirculating analyte system when the indicator measurement crosses the indicator threshold.

3. 发明授权

US5389546A Method for determining and monitoring constituent concentration of an aqueous metalworking fluid 失效
标题翻译：用于确定和监测含水金属加工液的成分浓度的方法
公开(公告)号：US5389546A
公开(公告)日：1995-02-14
申请号：US230445
申请日：1994-04-20
申请人： Giles J. P. Becket
发明人： Giles J. P. Becket
IPC分类号： G01N31/16
CPC分类号： G01N31/164 , G01N31/166 , Y10T436/11 , Y10T436/115831 , Y10T436/116664 , Y10T436/117497
摘要： The total alkalinity of an aqueous metalworking fluid is monitored and controlled by a continuous titration method that continuously supplies a stream of the metalworking fluid, at a known, controllable flow rate, to a flow through chamber having therein a static mixing element. Simultaneously and separately a stream of acid titrant, of known acid concentration is injected into the flow through chamber at a known controllable flow rate. The acid titrant and metalworking fluid mix and react in the chamber and the reacted metalworking fluid exiting the chamber passed over the tip of a pH electrode. The pH of the reacted metalworking fluid is continuously monitored and the output of the pH electrode used to adjust the flow of acid titrant to the chamber until an endpoint pH valve (typically a pH of 4) is reached. The total alkalinity is then determined from a) the known flow rates of the aqueous metalworking fluid and acid titrant and the known acid concentration of the titrant or may be determined from calibration curves for XY coordinate plots of volume of titrant vs known metalworking fluid concentration.
摘要翻译：通过连续滴定方法监测和控制含水金属加工液的总碱度，该连续滴定方法以已知的可控流速连续提供金属加工流体流到具有静态混合元件的流通室。同时并且分开地将已知酸浓度的酸流以已知的可控流速注入流通室。酸性滴定剂和金属加工液在室中混合和反应，并且离开室的反应的金属加工流体通过pH电极的尖端。连续监测反应的金属加工液体的pH值，并且用于调节酸性滴定剂流向腔室的pH电极的输出直到达到终点pH阀（通常为pH4）。然后根据a）已知的水性金属加工液和酸性滴定剂的流量和滴定剂的已知酸浓度来确定总碱度，或者可以通过滴定剂体积与已知金属加工液浓度的XY坐标图的校准曲线来确定总碱度。

4. 发明授权

US5094817A Apparatus for quantitative determination of trihalomethanes 失效
标题翻译：定量测定三缩水甘油酯的装置
公开(公告)号：US5094817A
公开(公告)日：1992-03-10
申请号：US538002
申请日：1990-06-14
申请人： Toyoaki Aoki , Kouji Kawakami , Yoshiharu Tanaka , Hiroshi Hoshikawa
发明人： Toyoaki Aoki , Kouji Kawakami , Yoshiharu Tanaka , Hiroshi Hoshikawa
IPC分类号： G01N31/00 , G01N31/16 , G01N31/22 , G01N33/18 , G01N35/08
CPC分类号： G01N33/1826 , G01N31/166 , G01N31/22 , G01N35/085 , Y10T436/117497 , Y10T436/118339 , Y10T436/19 , Y10T436/193333 , Y10T436/196666 , Y10T436/25125 , Y10T436/255
摘要： An apparatus for quantitative determination of trihalomethanes comprises a separation unit containing two channels in contact with each other via a microporous membrane that will not react with trihalomethanes, a reaction unit for heating a carrier solution that has passed through the separation unit, a cooling unit for cooling the carrier solution that has undergone complete reaction; and a detection unit for determining the quantity of a fluorescent substance in the carrier solution. A method for quantitative determination of trihalomethanes comprises flowing a sample solution or a mixture thereof with a reducing agent through one of the two channels in the separation unit, flowing the carrier solution through the other channel, heating the carrier solution that has passed through the separation unit and to which an alkaline nicotinamide or a derivative thereof has been added, cooling the carrier solution, and subjecting the cooled solution to fluorimetry.

5. 发明授权

US3864087A Titrating system 失效
标题翻译：投标系统
公开(公告)号：US3864087A
公开(公告)日：1975-02-04
申请号：US35984573
申请日：1973-05-14
申请人： BLOCK ENGINEERING
发明人： HIRSCHFELD TOMAS
IPC分类号： G01N31/16 , G01N21/08 , G01N21/06
CPC分类号： G01N31/166 , Y10T436/255
摘要： A chemical measuring system of the titration type comprises an elongated, hollow conduit, the walls of which are formed of a porous membrane. The conduit is suspended in a body of titrant. In operation a sample fluid is passed through the conduit. Titrant permeates the walls of the conduit and reacts with the sample. An end point is observed by an observable change at some position along the conduit, that position being proportional to the concentration of the sample.
摘要翻译：滴定型化学测量系统包括细长的中空导管，其壁由多孔膜形成。导管悬挂在滴剂体内。在操作中，样品流体通过导管。滴定剂渗透导管的壁并与样品反应。通过在导管的某个位置处的可观察的变化观察到终点，该位置与样品的浓度成比例。

6. 发明授权

US3192017A Continuous recording titrator 失效
标题翻译：连续记录滴定仪
公开(公告)号：US3192017A
公开(公告)日：1965-06-29
申请号：US20734662
申请日：1962-07-03
申请人： BECKMAN INSTRUMENTS INC
发明人： KRUGER HAROLD O
IPC分类号： G01N31/16
CPC分类号： G01N31/166

7. 发明授权

US3032493A Electrolytic titration apparatus 失效
标题翻译：电解滴定仪
公开(公告)号：US3032493A
公开(公告)日：1962-05-01
申请号：US86316259
申请日：1959-12-31
申请人： DOHRMANN INSTR COMPANY
发明人： COULSON DALE M , CAVANAGH LEONARD A
IPC分类号： G01N27/44 , G01N31/16
CPC分类号： G01N31/166 , G01N27/44

8. 发明授权

US10018610B1 Measuring total alkalinity in a recirculating fluid system 有权
公开(公告)号：US10018610B1
公开(公告)日：2018-07-10
申请号：US15438391
申请日：2017-02-21
申请人： BECS Technology, Inc.
发明人： Roger Chamberlain , Chris Edmiston , Brett Steinbrueck , Don Williams
IPC分类号： G01N33/18 , G01N31/16 , G01N31/22
CPC分类号： G01N33/18 , C02F1/00 , C02F2209/06 , C02F2209/07 , G01N31/166 , G01N33/1813
摘要： A method for determining the total alkalinity (TA) in a recirculating water system without adversely impacting the pH of the water includes the steps of selecting a pH threshold (ThpH), measuring the flow rate of the moving body of water (fS), controllably adding a known amount of acid to the recirculating water system at an acid flow rate (fA), repetitively measuring the pH of the recirculating water system downstream from the addition of the acid, and computing the total alkalinity of the recirculating water system when the pH measurement falls below the pH threshold.

9. 发明申请

US20070231910A1 Titration method using a tracer to quantify the titrant 有权
标题翻译：滴定法使用示踪剂量化滴定剂
公开(公告)号：US20070231910A1
公开(公告)日：2007-10-04
申请号：US11698594
申请日：2007-01-26
申请人： Michael DeGrandpre , Todd Martz , Andrew Dickson
发明人： Michael DeGrandpre , Todd Martz , Andrew Dickson
IPC分类号： G01N31/22 , G01N31/16
CPC分类号： G01N31/22 , G01N31/16 , G01N31/166 , Y10T436/13
摘要： A titration method uses a tracer in the titrant or titrand to quantify the amount of titrant added. The method does not require quantitative addition of titrant or sample. The tracer can be inert or can participate as an indicator of the titrant-analyte reaction. The tracer concentration is quantified by an appropriate method depending upon the type of tracer and analytical performance desired (e.g. precision, accuracy). The method simplifies titrations because it eliminates the need for a precision dispensing device and analytical balance.
摘要翻译：滴定法使用滴定剂或滴定剂中的示踪剂来量化添加的滴定剂的量。该方法不需要定量添加滴定剂或样品。示踪剂可以是惰性的或可以作为滴定剂 - 分析物反应的指示剂参与。取决于示踪剂的类型和所需的分析性能（例如精度，精度），通过适当的方法量化示踪剂浓度。该方法简化滴定，因为它消除了对精密分配装置和分析天平的需要。

10. 发明授权

US07153695B2 Continuous flow titration 失效
公开(公告)号：US07153695B2
公开(公告)日：2006-12-26
申请号：US10097643
申请日：2002-03-15
申请人： Johan Roeraade , Matthew Rice
发明人： Johan Roeraade , Matthew Rice
IPC分类号： G01N31/16
CPC分类号： G01N31/166 , Y10T436/116664
摘要： The present invention relates to a method for titration comprising guiding a sample to be titrated through a conduit, adding a reagent to said conduit at at least two entrance positions along said conduit in such a manner that said reagent will react with the sample within at least one individual sector of the conduit, defined as the space between two consecutive entrance positions or a final individual sector defined between a final entrance position and a sample exit point of the conduit, while at least one detection device positioned at the end of each sector of said conduit register the chemical and/or physical status. A pressure difference is provided between the reagent delivery device and the sample conduit such that the pressure difference measured between the reagent delivery device and the end of the final individual sector is controlled to be greater than the total pressure drop between the sample delivery point and the end of the final individual sector. The invention further relates to an arrangement for carrying out said method.

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