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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 7. Отображено 7.
14-07-2023 дата публикации

Method for determining carnosine content in animal tissue

Номер: CN116429925A
Автор: ZHANG HAICHAO, WANG JING, JIA HAITAO, HUANG XUEJING, AI LIANFENG, ZHANG JINGWEN, WEI XINXIN, LIU BAORU
Принадлежит:

The invention relates to the technical field of content determination, in particular to a method for determining carnosine content in animal tissue. According to the method, a mixed solution of methanol and trichloroacetic acid is used as an extraction solution in a sample pretreatment process, an isotope internal standard method is used for quantification, and an ultra-high performance liquid chromatography-quadrupole tandem mass spectrometry method is used for establishing the method for detecting the carnosine content in the animal tissue. The method has the advantages of simple pretreatment conditions, high sensitivity and accurate quantification, and provides a new reference technical means for accurate determination of the carnosine content in animal tissues.

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Номер записи: 1
19-08-2015 дата публикации

Device used for airtight lumbar puncturing and cerebrospinal fluid replacing

Номер: CN104841025A
Автор: LIU BAORU, ZHOU JIANGCHAO
Принадлежит:

The invention discloses a device used for airtight lumbar puncturing and cerebrospinal fluid replacing. The device comprises a lumbar puncture needle, an injector and a connector used for connecting the lumbar puncture needle and the injector. A communicating device with four communicating pipes is arranged in the connector. The device has the advantages that functions are multiple, use is safe and convenient, the device is used for the lumbar puncturing and is good in airtightness and sterile, direction dividing operation can be achieved, the risk of intracranial infection caused by lumbar puncturing and intrathecal liquid injecting can be effectively avoided, the flow speed of the cerebrospinal fluid can be controlled, the risk of the formation of cerebral hernia can be avoided, intrathecal liquid injecting can be conducted through a side hole in the device and the injector, different medicine can be injected, the flow speed of liquid medicine can be controlled through a valve, the pressure ...

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Номер записи: 2
26-05-2023 дата публикации

Determination method for illegally added macrolide drugs in veterinary drug preparation

Номер: CN116165303A
Автор: ZHANG HAICHAO, ZHEN JIANHUI, WANG JING, ZHANG JINGWEN, JIA HAITAO, HUANG XUEJING, LIU BAORU, AI LIANFENG
Принадлежит:

The invention provides a method for determining illegally added macrolide drugs in a veterinary drug preparation, and belongs to the technical field of veterinary drug detection. The determination method provided by the invention comprises the following steps: (1) dispersing a veterinary drug sample with water, adding an acetonitrile solution, extracting and centrifuging to obtain supernate; (2) purifying the supernatant by using a QuEChERs extraction tube, and centrifuging to obtain a purified solution; (3) mixing the purified solution with a sample constant volume solution, filtering, and carrying out liquid chromatography-tandem mass spectrometry determination to obtain a determination result; and (4) calculating to obtain the addition concentration of the macrolide medicine by utilizing a medicine linear equation according to the measurement result. The method is suitable for various veterinary drug dosage forms, has no obvious matrix effect, can accurately quantify by adopting a solvent ...

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Номер записи: 3
27-06-2023 дата публикации

Method for determining content of phenothiazine drugs in veterinary drug preparation

Номер: CN116338027A
Автор: WANG JING, ZHANG HAICHAO, JIA HAITAO, LI WEI, ZHANG JINGWEN, WEI XINXIN, HUANG XUEJING, LIU BAORU
Принадлежит:

The invention relates to the technical field of content determination, in particular to a method for determining the content of phenothiazine drugs in a veterinary drug preparation. The invention provides a liquid chromatography-tandem mass spectrometry method for determining the content of phenothiazine drugs in a traditional Chinese veterinary medicine preparation by using a hydrochloric acid-acetonitrile solution as a sample extracting solution, an MCX mixed cation exchange column as a purification condition and an acetonitrile and formic acid aqueous solution as a mobile phase. Particularly, the method can be used for measuring the contents of promethazine, chlorpromazine, thiridazine and perphenazine in veterinary drug preparations.

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Номер записи: 4
09-09-2015 дата публикации

A device that is used for airtight lumbar puncture and cerebrospinal fluid exchange

Номер: CN0204618958U
Автор: LIU BAORU, ZHOU JIANGCHAO
Принадлежит:

The utility model provides a device that is used for airtight lumbar puncture and cerebrospinal fluid exchange, the device includes lumbar puncture needle, syringe and be used for connecting the connector of lumbar puncture needle and syringe, be equipped with the intercommunication device that the one has four communicating pipe in the connector. The utility model discloses beneficial effect: the function is various, convenience safe in utilization for the lumbar puncture, the seal is good, and is aseptic, but diversion operation can avoid effectively that the waist is worn, the injection leads to the drainage to send the intracranial infection risk in the sheath, and peril that the steerable cerebrospinal fluid velocity of flow avoided the hernia cerebri to form, the side opening in this device of accessible, syringe carry out injection in the sheath, can pour into the different drugs into, and the velocity of flow through the valve control liquid medicine, pressure during through the ...

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Номер записи: 5
01-08-2023 дата публикации

Method for detecting pemedone and zolpidem residues in veterinary drug

Номер: CN116519822A
Автор: WANG JING, ZHANG HAICHAO, AI LIANFENG, JIA HAITAO, LIU BAORU, HUANG XUEJING
Принадлежит:

The invention provides a method for detecting pemeconone and zolpidem residues in a veterinary drug, and belongs to the field of veterinary drug safety detection. The method comprises the following steps: (1) extracting a veterinary drug sample to obtain a liquid to be detected; and (2) detecting the hymeconone and zolpidem in the to-be-detected liquid obtained in the step (1) by using a liquid chromatograph-tandem mass spectrometer. The detection method disclosed by the invention has the advantages of high sensitivity and low detection limit; and the method is simple, rapid and accurate to operate and high in recovery rate, and can be used for detecting the pemeconone and zolpidem residues in veterinary drugs.

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Номер записи: 6
02-06-2023 дата публикации

Method for determining content of beta-lactams in veterinary drug preparation by PRiME HLB-high performance liquid chromatography-tandem mass spectrometry

Номер: CN116203152A
Автор: WANG JING, ZHANG HAICHAO, YU CHEN, JIA HAITAO, ZHANG JINGWEN, QIE JUNQING, HUANG XUEJING, LIU BAORU
Принадлежит:

The invention belongs to the technical field of quality detection of veterinary drug preparations, and provides a method for determining the content of beta-lactams in a veterinary drug preparation through a PRIMEHLB-high performance liquid chromatography-tandem mass spectrometry method. The method comprises the following steps: extracting beta-lactam drugs in a sample to be detected by using acetonitrile-methanol, purifying and diluting by using a PRiMEHLB solid-phase extraction column, detecting by using a liquid chromatography-tandem mass spectrometer, and quantifying by using a matrix external standard method. The method disclosed by the invention is simple and convenient to operate, accurate in determination result, good in repeatability and high in precision sensitivity and sensitivity. According to the method, the content of the beta-lactam medicine in the veterinary medicine preparation can be quantitatively determined, and a basis is provided for establishing quality evaluation ...

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Номер записи: 7