$1100

Category: Chemicals/Chemical Intermediates/Intermediate Compounds

Company: China Yuanbig Group Limited

Product Description: King Peals EPS Beads F-SA Grade. Larger Beads with King Pearl Brand. Factory Supply Directly with Goods Price. more>

Negotiable

Category: Instruments & Meters/Electronic Measuring Instruments/Spectrum Analyzers

Company: 北京沃水科技有限公司

Product Description: FieldFox Handheld RF and Microwave AnalyzerAccurate Measurements Anytime, AnywherePerform measurements with confidence in the 4 to 50 GHz frequency range, achieving results with accuracy comparable to benchtop instrumentsReal-Time Spectrum Analysis (RTSA) up to 50 GHz ensures no signal goes undetectedRugged design built to withstand extremely harsh working environmentsLighter than other comparable solutions, with millimeter-wave models 30% lighter than other handheld productsConfigurable as a Cable and Antenna Analyzer (CAT), Vector Network Analyzer (VNA), Spectrum Analyzer, or an all-in-one comprehensive analyzerN996xA Handheld Spectrum Analyzer (SA) Selection GuideProductMaximum FrequencyInstrument TypeCable and Antenna AnalyzerSpectrum AnalyzerVector Network AnalyzerN9960A FieldFox Handheld Microwave Spectrum Analyzer, 32 GHz32 GHzSpectrum AnalyzerNoYesNoN9961A FieldFox Handheld Microwave Spectrum Analyzer, 44 GHz44 GHzSpectrum AnalyzerNoYesNoN9962A FieldFox Handheld Microwave Spectrum Analyzer, 50 GHz50 GHzSpectrum AnalyzerNoYesNoComprehensiveVNASAOptionDescriptionN991xAN995xAN992xAN993xAN996xACAT/Network Analysis10VNA Time Domain√√-112QuickCal√ Not available for N995xA√?210VNA Transmission/Reflection√Base Model?211VNA Full Two-Port S-Parameter√√?2121-Port Mixed-Mode S-Parameter√√?215TDR Cable Measurement√√?305Cable and Antenna AnalyzerBase Model√-308Vector Voltmeter√√?320Reflection Measurement (RL, VSWR, and Scalar Measurement)--√Spectrum Analyzer209Extended Range Transmission Analysis (ERTA)√?√220Tracking Generator210+233?√233Spectrum Analyzer√?Base Model235Preamplifier√?√236Interference Analyzer and Spectrogram√?√238Spectrum Analyzer Time Gating√?√Power Measurement208USB Power Sensor Measurement with Frequency√√√302Supports USB Power Sensor√√√310Built-in Power Meter√√√330Pulse Measurement via USB Peak Power Sensor√√√System Features30Remote Control Function√√√307GPS Receiver√√√309DC Bias Variable Voltage Source√√√FieldFox Handheld RF and Microwave Analyzer AccessoriesCablesN6314AVNA Cable (One), N-Type, Male-Male, 50ΩN6315AVNA Cable (One), N-Type, Male-Female, 50Ω85131FVNA Cable Set, with 3.5mm (Male, Female) Connectors85133FVNA Cable Set, with 2.4mm (Male, Female) ConnectorsN9910X-700Phase-Stable Cable (N-Type (Female) to N-Type (Female), 18 GHz, 3.28 ft or 1 m)N9910X-701Phase-Stable Cable (N-Type (Male) to N-Type (Male), 18 GHz, 3.28 ft or 1 m)N9910X-708Phase-Stable Cable (3.5 mm (Male) to 3.5 mm (Female), 26.5 GHz, 3.28 ft or 1 m)N9910X-709Phase-Stable Cable (3.5 mm (Female) to 3.5 mm (Female), 26.5 GHz, 3.28 ft or 1 m)N9910X-714Phase-Stable Cable (2.4 mm (Female) to 2.4 mm (Female), 50 GHz, 3.28 ft or 1 m)N9910X-715Phase-Stable Cable (2.4 mm (Female) to 2.4 mm (Female), 50 GHz, 3.28 ft or 1 m)Calibration KitsN9910X-8003-in-1 OSL Calibration Kit (DC to 6 GHz, N-Type (Male) 50 Ω)85514A4-in-1 OSLT Calibration Kit (DC to 9 GHz, N-Type (Male) 50 Ω)85515A4-in-1 OSLT Calibration Kit (DC to 9 GHz, N-Type (Female) 50 Ω)85518A4-in-1 OSLT Calibration Kit (DC to 18 GHz, N-Type (Male) 50 Ω)85519A4-in-1 OSLT Calibration Kit (DC to 18 GHz, N-Type (Female) 50 Ω)85520A4-in-1 OSLT Calibration Kit (DC to 26.5 GHz, 3.5 mm (Male) 50 Ω)85521A4-in-1 OSLT Calibration Kit (DC to 26.5 GHz, 3.5 mm (Female) 50 Ω)85092CElectronic Calibration Module (ECal), 300 kHz to 9 GHz, N-Type, 50 Ω, 2-PortN4690CElectronic Calibration Module (ECal), 300 kHz to 18 GHz, N-Type, 50 Ω, 2-PortN4691BElectronic Calibration Module (ECal), 300 kHz to 26.5 GHz, 3.5 mm, 50 Ω, 2-PortN4693AElectronic Calibration Module (ECal), 10 MHz to 50 GHz, 2.4 mm, 50 Ω, 2-Port85032EMechanical Calibration Kit, DC to 6 GHz, N-Type85032FMechanical Calibration Kit, DC to 9 GHz, N-Type85054DMechanical Calibration Kit, DC to 18 GHz, N-Type85033EMechanical Calibration Kit, DC to 9 GHz, 3.5 mm85052EMechanical Calibration Kit, DC to 26.5 GHz, 3.5 mm85056AMechanical Calibration Kit, DC to 50 GHz, 2.4 mmAntennasN9910X-820Directional Antenna (Multi-band 800 MHz to 2.5 GHz, 10 dBi, N-Type (Female))N9910X-821Telescopic Antenna (70 MHz to 1 GHz, 10 dBi, BNC (Male))N9910X-822Antenna, Directional, Log-Periodic, 600 MHz to 9 GHz, N-Type (Female)N9910X-823Antenna, Cellular Narrowband, 824 to 869 MHz, N-Type (Female)N9910X-824Antenna, Cellular Narrowband, PCS 1850 to 1990 MHz, N-Type (Female)N9910X-825Antenna, GPS, Active, SMA (Male)Adapters11901B2.4 mm (f) to 3.5 mm (f), DC to 26.5 GHz11903B2.4 mm (f) to 3.5 mm (f), DC to 26.5 GHz85130C3.5 mm to N-Type Test Port Adapter Kit85130F2.4 mm to 3.5 mm Test Port Adapter Kit85130G2.4 mm to 2.4 mm Test Port Adapter Kit more>

Negotiable

Category: Instruments & Meters/Electronic Measuring Instruments/Spectrum Analyzers

Company: 北京沃水科技有限公司

Product Description: FieldFox Handheld RF and Microwave AnalyzersAccurate Measurements Anytime, AnywherePerform measurements with confidence in the 4 to 50 GHz frequency range, achieving results with accuracy comparable to benchtop instrumentsReal-time spectrum analysis (RTSA) up to 50 GHz ensures no signal goes undetectedRugged design built to withstand extremely harsh working environmentsLighter than other comparable solutions, with millimeter-wave models being 30% lighter than other handheld productsConfigurable as a cable and antenna analyzer (CAT), vector network analyzer (VNA), spectrum analyzer, or all-in-one comprehensive analyzerN993xA Handheld Spectrum Analyzer (SA) Selection GuideProductMaximum FrequencyInstrument TypeCable and Antenna AnalyzerSpectrum AnalyzerVector Network AnalyzerN9935A FieldFox Handheld Microwave Spectrum Analyzer, 9 GHz9 GHzSpectrum AnalyzerNoYesNoN9936A FieldFox Handheld Microwave Spectrum Analyzer, 14 GHz14 GHzSpectrum AnalyzerNoYesNoN9937A FieldFox Handheld Microwave Spectrum Analyzer, 18 GHz18 GHzSpectrum AnalyzerNoYesNoN9938A FieldFox Handheld Microwave Spectrum Analyzer, 26.5 GHz26.5 GHzSpectrum AnalyzerNoYesNoComprehensiveVNASAOptionDescriptionN991xAN995xAN992xAN993xAN996xACAT/Network Analysis10VNA Time Domain√√-112QuickCal√ Not available for N995xA√?210VNA Transmission/Reflection√Base Model?211VNA Full Two-Port S-Parameters√√?2121-Port Mixed-Mode S-Parameters√√?215TDR Cable Measurement√√?305Cable and Antenna AnalyzerBase Model√-308Vector Voltmeter√√?320Reflection Measurement (RL, VSWR, and Scalar Measurement)--√Spectrum Analyzer209Extended Range Transmission Analysis (ERTA)√?√220Tracking Generator210+233?√233Spectrum Analyzer√?Base Model235Preamplifier√?√236Interference Analyzer and Spectrogram√?√238Spectrum Analyzer Time Gating√?√Power Measurement208USB Power Sensor Measurement with Frequency√√√302USB Power Sensor Support√√√310Built-in Power Meter√√√330Pulse Measurement via USB Peak Power Sensor√√√System Features30Remote Control Capability√√√307GPS Receiver√√√309DC Bias Variable Voltage Source√√√FieldFox Handheld RF and Microwave Analyzer AccessoriesCablesN6314AVNA Cable (One), N-Type, Male-Male, 50ΩN6315AVNA Cable (One), N-Type, Male-Female, 50Ω85131FVNA Cable Set, with 3.5mm (Male, Female) Connectors85133FVNA Cable Set, with 2.4mm (Male, Female) ConnectorsN9910X-700Phase-Stable Cable (N-Type (Female) to N-Type (Female), 18 GHz, 3.28 ft or 1 m)N9910X-701Phase-Stable Cable (N-Type (Male) to N-Type (Male), 18 GHz, 3.28 ft or 1 m)N9910X-708Phase-Stable Cable (3.5 mm (Male) to 3.5 mm (Female), 26.5 GHz, 3.28 ft or 1 m)N9910X-709Phase-Stable Cable (3.5 mm (Female) to 3.5 mm (Female), 26.5 GHz, 3.28 ft or 1 m)N9910X-714Phase-Stable Cable (2.4 mm (Female) to 2.4 mm (Female), 50 GHz, 3.28 ft or 1 m)N9910X-715Phase-Stable Cable (2.4 mm (Female) to 2.4 mm (Female), 50 GHz, 3.28 ft or 1 m)Calibration KitsN9910X-8003-in-1 OSL Calibration Kit (DC to 6 GHz, N-Type (Male) 50 Ω)85514A4-in-1 OSLT Calibration Kit (DC to 9 GHz, N-Type (Male) 50 Ω)85515A4-in-1 OSLT Calibration Kit (DC to 9 GHz, N-Type (Female) 50 Ω)85518A4-in-1 OSLT Calibration Kit (DC to 18 GHz, N-Type (Male) 50 Ω)85519A4-in-1 OSLT Calibration Kit (DC to 18 GHz, N-Type (Female) 50 Ω)85520A4-in-1 OSLT Calibration Kit (DC to 26.5 GHz, 3.5 mm (Male) 50 Ω)85521A4-in-1 OSLT Calibration Kit (DC to 26.5 GHz, 3.5 mm (Female) 50 Ω)85092CElectronic Calibration Module (ECal), 300 kHz to 9 GHz, N-Type, 50 Ω, 2-PortN4690CElectronic Calibration Module (ECal), 300 kHz to 18 GHz, N-Type, 50 Ω, 2-PortN4691BElectronic Calibration Module (ECal), 300 kHz to 26.5 GHz, 3.5 mm, 50 Ω, 2-PortN4693AElectronic Calibration Module (ECal), 10 MHz to 50 GHz, 2.4 mm, 50 Ω, 2-Port85032EMechanical Calibration Kit, DC to 6 GHz, N-Type85032FMechanical Calibration Kit, DC to 9 GHz, N-Type85054DMechanical Calibration Kit, DC to 18 GHz, N-Type85033EMechanical Calibration Kit, DC to 9 GHz, 3.5 mm85052EMechanical Calibration Kit, DC to 26.5 GHz, 3.5 mm85056AMechanical Calibration Kit, DC to 50 GHz, 2.4 mmAntennasN9910X-820Directional Antenna (Multi-band 800 MHz to 2.5 GHz, 10 dBi, N-Type (Female))N9910X-821Telescopic Antenna (70 MHz to 1 GHz, 10 dBi, BNC (Male))N9910X-822Antenna, Directional, Log-Periodic, 600 MHz to 9 GHz, N-Type (Female)N9910X-823Antenna, Cellular Narrowband, 824 to 869 MHz, N-Type (Female)N9910X-824Antenna, Cellular Narrowband, PCS 1850 to 1990 MHz, N-Type (Female)N9910X-825Antenna, GPS, Active, SMA (Male)Adapters11901B2.4 mm (f) to 3.5 mm (f), DC to 26.5 GHz11903B2.4 mm (f) to 3.5 mm (f), DC to 26.5 GHz85130C3.5 mm to N-Type Test Port Adapter Kit85130F2.4 mm to 3.5 mm Test Port Adapter Kit85130G2.4 mm to 2.4 mm Test Port Adapter Kit more>

Negotiable

Category: Chemicals/Chemical Intermediates/Intermediate Compounds

Company: Fu'an Shuibo Technology Co., Ltd.

Product Description: Measuring RangeSalinity0~199.9pptTemperature 0℃~50℃AccuracySalinity ±2%F·S Temperature±1℃ResolutionSalinity0.1pptTemperature0.1℃ Environmental Relative Humidity more>

Negotiable

Category: Chemicals/Chemical Intermediates/Intermediate Compounds

Company: Hubei new DE sheng material science and technology co., LTD.

Product Description: NSP-SA-ADH is a yellow powder with a purity of over 98% and a molecular weight of 740.85. It is commonly packaged in brown bottles and stored in a dark and low-temperature environment. It is suitable for labeling antigen antibody proteins. Although similar to other acridine series products and with acridine rings, the detection substance is different, and the role played by acridine hydrazide should not be underestimated. The luminescence process of acridine hydrazide is the same as other acridine products, using an alkaline solution of hydrogen peroxide. Once the molecule is attacked, it will generate an unstable dioxane, which will then decompose into carbon dioxide and N-methylacridone. When it returns to the ground state, it will emit photons containing wavelength. The entire luminescence process does not require any other auxiliary reagents, effectively reducing background luminescence and improving overall detection efficiency, with minimal external interference factors. The advantages of acridine hydrazide NSP-SA-ADH 1. The labeling rate is high, as it contains free amino groups, making it suitable for directly coupling polysaccharides, nucleic acids, or proteins containing aldehyde groups. 2. Acridyl hydrazide has hydrolysis resistance and stability, and its hydrolysis resistance is generally stronger than other acridine compounds. Moreover, even in acidic solutions, its performance is very stable. When stored at room temperature for 4 weeks with protein conjugates, its photoquantum yield does not decrease, and even at -20 ℃, it can be stored for more than a year. 3. It has hydrophilicity, as the produced acridine hydrazide is in powder form, it will be prepared into a solution when used, and it is required to be soluble in water, so that it can be water-soluble with markers formed by antibodies, nucleic acids, etc., making it easy for later luminescence detection. As a professional manufacturer of chemiluminescent reagents, Desheng sells six series of luminescent reagent products that can meet the different needs of customers. At the same time, acridine ester and acridine hydrazide are highly popular in the market and have become popular products due to their high luminescence efficiency and simple operation, which brings great convenience to customers. If you have any relevant needs, please click on the website to inquire about details! more>

Negotiable

Category: Chemicals/Chemical Intermediates/Intermediate Compounds

Company: Hubei new DE sheng material science and technology co., LTD.

Product Description: Something about acridinium ester (NSP-SA-NHS) Acridine esters (NSP-SA-NHS) CAS: 199293-83-9 and related compounds have been proven to be very advantageous chemiluminescent labels, with stability, activity and sensitivity exceeding those of radioactive isotopes. Under alkaline conditions, the NHS will leave and the acridine ester will bind to the protein with a stable amide bond to form an acridine compound. After the reaction is completed, the excess acridine salt is removed through a desalting column. In the presence of alkaline hydrogen peroxide, acridine-labeled protein does not require enzymatic catalysis to emit light on its own. After adding the excitation reagent, the system immediately releases photons, which can be detected with a 430nm standard photometer. This light-emitting process is very short (the entire process occurs in less than 2 seconds), and the trigger scheme must add an internal photometer and photon detector. Proteins, peptides, antibodies, and nucleic acids can all be labeled with acridine. The labeled compound emits light rapidly under the excitation of basic hydrogen peroxide, and the labeled compound can be detected by collecting photons. Product stability: 1. It is stable in acidic solution (pH4.8, especially in alkaline solution, the acridine compound is partially hydrolyzed to reduce its stability, and the hydrolysis process is a dark reaction process that does not emit light; the degree of hydrolysis increases with the increase of pH, and the degree of hydrolysis increases with the increase of temperature. Increase and increase. 3. The stability of acridine amide is higher than that of acridine ester structure, and the ability to resist hydrolysis is stronger. 4. Acridine ring or phenol ring or benzene sulfonyl ring is connected with a methyl group and other electricity-donating groups. Due to the large steric hindrance, the thermal stability is increased; the electron withdrawing group is attached, which is beneficial to the nucleophilic substitution reaction Its stability decreases. 5. Suggestion: Use a weakly acidic buffer as much as possible for the storage buffer after coupling, and bubbling nitrogen to remove oxygen. Store at low temperature, sealed and protected from light. Conditions can be made into freeze-dried samples and then stored. Precautions: 5. The acridinium ester luminescence process is very short (the whole process takes less than 2 seconds), and the trigger scheme must add an internal photometer and photon detector; in addition, this product can also use a multifunctional microplate reader equipped with an autosampler Perform luminescence data collection to minimize the influence of sample addition time on the collected signal. more>

Negotiable

Category: Instruments & Meters/Analytical Instruments/Other Analytical Instruments

Company: Shenzhen Yice Medical Testing Technology Co., Ltd.

Product Description: Product Overview:The SA-2010S Medical Electrical Safety Analyzer tests medical devices in accordance with international and U.S. standards. Users simply press a switch to select either AAMI or IEC electrical safety testing standards. Through applied part connections, it can perform tests such as line-to-ground (patient), line-to-line (patient auxiliary), and line isolation (power on applied parts) leakage for devices with multiple applied parts.Product Features1. Compact size, lightweight, and portable;2. Intuitive test functions with quick switching;3. Selectable test loads, enabling IEC and AAMI standard testing with a single instrument;4. Performs voltage, current, ground impedance, and leakage current tests;5. Easy-to-use applied part (ECG) connections allow testing of patient lead leakage current and accessory lead leakage current for 12-lead monitors.Technical Specifications1. Built-in IEC60601 (equivalent to GB9706.1) or AAMI electrical safety testing standards;2. Completes tests for medical equipment voltage, current, ground impedance, leakage current, and other items;3. Voltage measurement range (V): 85-265V (±3% of reading);4. Current measurement range (A): 0-19.99A (±5% of reading);5. Ground resistance measurement range (Ω): 0-1.99 (±1% of range); 2 to 19.99 (±1% of range);6. Through applied part connections, it can perform line-to-ground (patient), line-to-line (patient auxiliary), and line isolation (power on applied parts) leakage tests for devices with multiple applied parts;7. Leakage current measurement range (uA): 0-1999, DC & 25-1kHz (±1% of reading), 1kHz-100kHz (±2.5% of reading), 100kHz-1MHz (±5% of reading);8. Built-in 12-lead patient ECG and performance waveforms:ECG composite waveforms: 30, 60, 120, 240 BPM;Sine waves: 10, 60, and 100Hz;Square waves: 0.125 and 2.0Hz;Triangular waves: 2Hz, high-level output: 1Vp-p, accuracy: ±2%, frequency accuracy: ±0.5%;9. Single fault simulation: Can simulate ground wire disconnection; polarity reversal; neutral wire disconnection; live wire disconnection. more>

Negotiable

Category: Chemicals/Chemical Intermediates/Intermediate Compounds

Company: 成都化夏化学试剂有限公司(北京公司）

Product Description: CAS NO:57671-19-9EC NO:Molecular Formula:Molecular Weight:246.35Synonyms:;1,8-DIAZABICYCLO[5.4.0]UNDEC-7-ENE,COMPOUNDWITHPHENOL(1:1);1,8-DIAZABICYCLO[5.4.0]UNDEC-7-ENE, COMPOUND WITH PHENOL (1:1);Phenol,compoundwith2,3,4,6,7,8,9,10-octahydropyrimido[1,2-a]azepine(1:1);Phenol, compd. with 2,3,4,6,7,8,9,10-octahydropyrimido1,2-aazepine (1:1);1,8-diazabicyclo[5.4.0]undec-7-ene, compound with phenol;Phenol,compound with 2,3,4,6,7,8,9,10-octahydropyrimido [1,2-a]azepine;1,8-Diazabicyclo[5.4.0]undec-7-ene phenolateMolecular Structure: more>