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公开(公告)号：US20240219303A1
公开(公告)日：2024-07-04
申请号：US18149438
申请日：2023-01-03
CPC分类号： G01N21/643 , G01N33/1813
摘要： This disclosure relates to methods of detecting iron in a water injection system, such as a water injection system used in the oil and gas industry, using an optical siderophore-based biosensor. This disclosure also relates to methods of detecting corrosion using an optical siderophore-based biosensor.
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公开(公告)号：US11999685B1
公开(公告)日：2024-06-04
申请号：US18244941
申请日：2023-09-12
发明人： Hany Mohamed Abd El-Lateef Ahmed , Saadeldin Elsayed Ibrahim Shabaan , Mai Mustafa Khalaf Ali , Mohamed Gouda , Wael I. Mortada
IPC分类号： G01N1/40 , C07C391/02 , G01N33/18
CPC分类号： C07C391/02 , G01N1/4044 , G01N33/1813 , Y10T436/107497 , Y10T436/255
摘要： Novel organoselenium selective ligands are presented and designed to determine metal ions in a sample. These ligands are used as complexing agents in a dispersive liquid-liquid microextraction procedure of copper and zinc ions. The procedure has a shortened extraction time, minimal organic solvent types, and lower amounts of solvents, as well as easy operation and high enrichment efficiency.
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公开(公告)号：US11919843B1
公开(公告)日：2024-03-05
申请号：US18113505
申请日：2023-02-23
发明人： Hany Mohamed Abd El-Lateef Ahmed , Saadeldin Elsayed Ibrahim Shabaan , Mai Mostafa Khalaf Ali , Mohamed Gouda , Wael I. Mortada
IPC分类号： C07C391/02 , G01N1/40 , G01N33/18
CPC分类号： C07C391/02 , G01N1/4044 , G01N33/1813 , Y10T436/107497 , Y10T436/255
摘要： Novel organoselenium selective ligands are presented and designed to determine metal ions in a sample. These ligands are used as complexing agents in a dispersive liquid-liquid microextraction procedure of copper and zinc ions. The procedure has a shortened extraction time, minimal organic solvent types, and lower amounts of solvents, as well as easy operation and high enrichment efficiency.
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公开(公告)号：US11650191B2
公开(公告)日：2023-05-16
申请号：US17199217
申请日：2021-03-11
CPC分类号： G01N33/1813 , B03C1/282 , B03C1/286 , G01N1/4044 , G01N1/44 , G01N15/04 , G01N15/0656 , G01N33/2858
摘要： An in-situ measurement apparatus automatically draws aqueous samples on an intermittent or ad-hoc basis and measures specific metal specie concentration. The apparatus can perform both raw measurement of specific metal specie, as well as processing to convert other species of the same metal to the specific metal specie or to destroy or remove unwanted masking agents (e.g. organics). In one application, “dirty” water from a scrubber is measured for Se(IV) presence (using a renewable voltametric system), both with and without the masking agents present; in addition, selective processing converts other selenium species to Se(IV), permitting assessment of total selenium and measurement of Se(VI) presence. Automated reactions can then be taken to remove detected toxic substances from waste water without excess reliance on treatment chemicals, and so as to ensure that only water complaint with regulatory standards is released into the environment.
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公开(公告)号：US20180346347A1
公开(公告)日：2018-12-06
申请号：US15611417
申请日：2017-06-01
IPC分类号： C02F1/20 , G01N33/18 , G01N27/416 , B01D19/00 , C02F1/00
CPC分类号： C02F1/20 , B01D19/0005 , B01D19/0063 , C02F1/008 , C02F2101/10 , C02F2209/03 , C02F2209/05 , C02F2209/40 , C02F2209/44 , C02F2303/08 , G01N33/1813
摘要： An apparatus for detecting cation conductivity of sample water is provided. The apparatus includes a decarbonation device which receives ambient air and removes CO2 components from the ambient air to produce decarbonated ambient air. The apparatus also includes a desorption device which receives the decarbonated ambient air and sample water that includes CO2 gas. The apparatus also includes one or more control processors which cause the decarbonated ambient air to be provided to the sample water in the desorption chamber where a portion of the CO2 gas is removed from the sample water when the decarbonated air passes through the sample water. The desorption chamber utilizes gravity to implement counterflow of the sample water and the decarbonated air to efficiently produce degassed sample water. The degassed water is provided to a conductivity sensor for evaluating the corroding anionic impurities of the water.
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公开(公告)号：US09994713B2
公开(公告)日：2018-06-12
申请号：US15082808
申请日：2016-03-28
发明人： Aasif Helal
CPC分类号： C09B26/02 , C09B11/08 , G01N33/1813 , G01N33/582 , G01N33/84
摘要： Fluorescent Schiff base compounds comprising a xanthene dye based moiety and an alkyl imidazole moiety. Methods of assessing these fluorescent Schiff base compounds as fluorescent probes for metal ions in Cu2+ chemosensing applications, methods of preparing the fluorescent Schiff base compounds and methods of detecting Cu2+ ions with the same are also provided.
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7.发明申请公开(公告)号：US20180102240A1
公开(公告)日：2018-04-12
申请号：US15728485
申请日：2017-10-09
申请人： New York University
CPC分类号： H01J49/0009 , G01N33/1813 , G01N33/182 , H01J49/105
摘要： Disclosed herein are internal standard compositions, a plurality of calibration standards, and one or more kits for use with mass spectrometry, particularly for use with an inductively coupled plasma mass spectrometer capable of simultaneous detection of a large number of ionization products over a large range of masses. Methods of using these reagent materials for the simultaneously detection of absolute concentrations of a plurality of elements in a liquid sample.
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8.发明申请公开(公告)号：US20180031517A1
公开(公告)日：2018-02-01
申请号：US15665370
申请日：2017-07-31
发明人： Nathan Netzer , Indrek Must , Yupu Qiao , Zhenqiang Wang , Zhen Zhang , Shi-Li Zhang
IPC分类号： G01N27/414 , G01N33/18
CPC分类号： G01N27/414 , G01N27/333 , G01N27/4146 , G01N33/1813
摘要： The disclosed apparatus, systems and methods relate to the use of metal-organic supercontainers as a size-selective ionophore by incorporation into a substrate for ion sensing electrodes.
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公开(公告)号：US20170299502A1
公开(公告)日：2017-10-19
申请号：US15491918
申请日：2017-04-19
CPC分类号： G01N1/2035 , G01N21/77 , G01N21/78 , G01N21/8483 , G01N21/94 , G01N33/1813 , G01N2001/205 , G01N2021/7759 , G01N2021/7773 , G01N2021/7786
摘要： Embodiments of the present invention are directed to methods, systems, and software for assessing contaminant quantities in a fluid. Fluid enters a reaction chamber. A controller then signals two different sheets with different reagents to move into the reaction chamber. One sheet contains reagents to form a contaminant byproduct or gas, while the other sheet is saturated with reagent that will have a photometric effect upon reacting with the contaminant byproduct or gas. After the photometric effect has occurred, the controller moves the reacted portion of the other reagent sheet into alignment with a photometric sensor. This photometric effect is calculated to contaminant concentration. The concentration is recorded and the data is transmitted to memory. The fluid sample in the chamber is drained and the remaining solid waste is collected onto the first reagent sheet. Both sheets are individually collected into separate controllable collectors.
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公开(公告)号：US09791429B2
公开(公告)日：2017-10-17
申请号：US14533343
申请日：2014-11-05
申请人： Ecolab USA Inc.
CPC分类号： G01N33/1813 , G01N1/2035 , G01N27/4168 , G01N2001/1062 , G01N2001/2285
摘要： Certain embodiments include a sensor system for measuring chlorine concentration in water. The sensor system can have a manifold including one or more flow passages for receiving fluid flow. The sensor system can have a probe for measuring chlorine concentration in fluid communication with a flow passage of the one or more flow passages of the manifold. The probe can have a probe body oriented to direct incoming fluid from one or more flow passages of the manifold toward an end of the probe body. The probe can have a plurality of flutes defined on an outer surface of the probe body. The flutes can be shaped and oriented to direct fluid from the end proximal to the electrodes, back toward the one or more flow passages of the manifold.
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