公开(公告)号：US09599566B2

公开(公告)日：2017-03-21

申请号：US15088609

申请日：2016-04-01

Applicant: Ecolab USA Inc.

Inventor： Hua Zheng

IPC: G01N21/77 ,  G01N33/18 ,  G01N21/25

CPC classification number: G01N33/182 ,  G01N21/251 ,  G01N21/77 ,  G01N21/78 ,  G01N21/80 ,  G01N31/22 ,  G01N2021/7786

Abstract: The invention provides a method for measuring the concentration of anionic polymers in an industrial water system. Specifically, the concentration of anionic polymer can be measured by combining an indicator dye composition that includes an acridine compound or a salt thereof to a water sample and measuring the absorbance of the mixture. The concentration can be determined by comparing the absorbance of the mixture to absorbance values on a pre-determined calibration curve. The dosage of anionic polymer can be optionally adjusted based on the concentration.

公开(公告)号：US10782241B2

公开(公告)日：2020-09-22

申请号：US16047229

申请日：2018-07-27

Applicant: Ecolab USA Inc.

Inventor： Hua Zheng ,  Xiaodong Huang ,  Tiandi Zhuang ,  Lan Xiao ,  Patrick G. Murray ,  Philip M. Eastin

IPC: G01N21/84 ,  G01N1/28 ,  G01N21/31 ,  C02F1/52 ,  B01D15/08 ,  B01D17/02 ,  G01N15/06 ,  B01D17/00 ,  C02F1/38 ,  C02F1/44 ,  C02F103/32 ,  C02F1/54 ,  C02F1/24 ,  G01N1/40 ,  G01N21/78 ,  G01N15/00

Abstract: A method of detecting free flocculant polymer having a net charge present in an aqueous phase of a multi-phase substance is provided. The multi-phase substance comprises a solid phase, an organic phase, and the aqueous phase. The method comprises separating the solid phase from the multi-phase substance to form a dual phase top liquid comprising the organic phase and the aqueous phase; separating the organic phase from the dual phase top liquid, leaving the aqueous phase; combining the free flocculant polymer in the aqueous phase and a dye having an opposite net charge than that of the free flocculant polymer, thereby causing a spectroscopically observable change in the aqueous phase; and analyzing the aqueous phase via spectrometry to determine the concentration of the free flocculant polymer in the multi-phase substance.

公开(公告)号：US20170191975A1

公开(公告)日：2017-07-06

申请号：US15464540

申请日：2017-03-21

Applicant: Ecolab USA Inc.

Inventor： Hua Zheng

IPC: G01N33/18 ,  G01N31/22

CPC classification number: G01N33/182 ,  G01N21/251 ,  G01N21/77 ,  G01N21/78 ,  G01N21/80 ,  G01N31/22 ,  G01N2021/7786

Abstract: The invention provides a method for measuring the concentration of anionic polymers in an industrial water system. Specifically, the concentration of anionic polymer can be measured by combining an indicator dye composition comprising an acridine compound or a salt thereof to a water sample and measuring the absorbance of the mixture. The concentration can be determined by comparing the absorbance of the mixture to absorbance values on a pre-determined calibration curve. The dosage of anionic polymer can be optionally adjusted based on the concentration.

公开(公告)号：US20160290929A1

公开(公告)日：2016-10-06

申请号：US15088609

申请日：2016-04-01

Applicant: Ecolab USA Inc.

Inventor： Hua Zheng

IPC: G01N21/77 ,  G01N33/18

CPC classification number: G01N33/182 ,  G01N21/251 ,  G01N21/77 ,  G01N21/78 ,  G01N21/80 ,  G01N31/22 ,  G01N2021/7786

Abstract: The invention provides a method for measuring the concentration of anionic polymers in an industrial water system. Specifically, the concentration of anionic polymer can be measured by combining an indicator dye composition comprising an acridine compound or a salt thereof to a water sample and measuring the absorbance of the mixture. The concentration can be determined by comparing the absorbance of the mixture to absorbance values on a pre-determined calibration curve. The dosage of anionic polymer can be optionally adjusted based on the concentration.

Abstract translation: 本发明提供了一种用于测量工业水系统中阴离子聚合物浓度的方法。 具体地，阴离子聚合物的浓度可以通过将包含吖啶化合物或其盐的指示剂染料组合物与水样品结合并测量混合物的吸光度来测量。 可以通过将混合物的吸光度与预定的校准曲线上的吸光度值进行比较来确定浓度。 阴离子聚合物的剂量可以根据浓度任意调节。

公开(公告)号：US20150198540A1

公开(公告)日：2015-07-16

申请号：US14152637

申请日：2014-01-10

Applicant: Ecolab USA Inc.

Inventor： Hua Zheng ,  Ning Jin ,  Fei Xia ,  Ling Liang ,  Chunbo Yu ,  Lin Jiang ,  Ling Feng Han

IPC: G01N21/94

CPC classification number: G01N31/22 ,  G01N21/78 ,  G01N33/1853

Abstract: The invention provides devices, methods, and compositions for dry chemical reagents to measure calcium, magnesium (total hardness), and other analytes in water using colorimetric devices. The measurement may be a one-step procedure without the need of dilution and multi-step preparation, so that it can be easily employed by untrained personnel. The chemical reagents may include dyes, buffer reagents, masking reagents, competing ligands, and other chemicals such as fillers. The chemical reagents may be grinded together as a homogenous fine powder, equally dispensed into small containers for each test or dried as film or solid using the means of air, low heat or vacuum. The composition may be easily dissolved into water samples and stable for long term storage. The methods may be able to distinguish between similar materials such as magnesium and calcium with the same one reagent or from other interfering species in water samples

Abstract translation: 本发明提供用于使用比色装置测量水中的钙，镁（总硬度）和其它分析物的干化学试剂的装置，方法和组合物。 测量可以是一步程序，而不需要稀释和多步骤准备，从而可以容易地由未经培训的人员使用。 化学试剂可以包括染料，缓冲试剂，掩蔽试剂，竞争配体和其它化学品如填料。 化学试剂可以作为均匀的细粉末一起研磨，均匀地分配到用于每个试验的小容器中，或者使用空气，低热或真空的方式用膜或固体干燥。 组合物可以容易地溶解在水样中，并且可以长期储存稳定。 这些方法可能能够用相同的一种试剂或水样中的其他干扰物质来区分类似的材料，例如镁和钙

公开(公告)号：US20190033222A1

公开(公告)日：2019-01-31

申请号：US16047229

申请日：2018-07-27

Applicant: Ecolab USA Inc.

Inventor： Hua Zheng ,  Xiaodong Huang ,  Tiandi Zhuang ,  Lan Xiao ,  Patrick G. Murray ,  Philip M. Eastin

IPC: G01N21/84 ,  G01N1/28 ,  G01N21/31 ,  C02F1/52 ,  C02F1/38 ,  C02F1/44 ,  B01D17/02 ,  B01D15/08 ,  C02F1/54

Abstract: A method of detecting free flocculant polymer having a net charge present in an aqueous phase of a multi-phase substance is provided. The multi-phase substance comprises a solid phase, an organic phase, and the aqueous phase. The method comprises separating the solid phase from the multi-phase substance to form a dual phase top liquid comprising the organic phase and the aqueous phase; separating the organic phase from the dual phase top liquid, leaving the aqueous phase; combining the free flocculant polymer in the aqueous phase and a dye having an opposite net charge than that of the free flocculant polymer, thereby causing a spectroscopically observable change in the aqueous phase; and analyzing the aqueous phase via spectrometry to determine the concentration of the free flocculant polymer in the multi-phase substance.

公开(公告)号：US10184927B2

公开(公告)日：2019-01-22

申请号：US15464540

申请日：2017-03-21

Applicant: Ecolab USA Inc.

Inventor： Hua Zheng

IPC: G01N33/18 ,  G01N31/22 ,  G01N21/77 ,  G01N21/78 ,  G01N21/25 ,  G01N21/80

Abstract: The invention provides a method for measuring the concentration of anionic polymers in an industrial water system. Specifically, the concentration of anionic polymer can be measured by combining an indicator dye composition that includes an acridine compound or a salt thereof to a water sample and measuring the absorbance of the mixture. The concentration can be determined by comparing the absorbance of the mixture to absorbance values on a pre-determined calibration curve. The dosage of anionic polymer can be optionally adjusted based on the concentration.