Empowering Scientific Discovery

Tianjin Zhongtong Technology Development Co., Ltd.

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BrandSEAL
OriginGermany
Instrument TypeContinuous Flow Analyzer (CFA)
Detection PrinciplesColorimetric Spectrophotometry (NH₄⁺, NO₃⁻, PO₄³⁻, K⁺, Ca²⁺, B, SO₄²⁻, Urea)
Sample ThroughputUp to 50 samples/h (per channel)
Reagent Consumption50 µL – 2 mL per determination
Precision (RSD)NH₃-N: 0.02–0.04%
P (available P)0.02–0.04%
K0.03–0.05%
ComplianceASTM D5178, ISO 11261, ISO 13878, EN 15972, AOAC 971.22, USP <731>
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BrandSEAL
OriginGermany
ModelQuAAtro
Instrument TypeLaboratory Continuous Flow Analyzer (CFA)
Flow Cell ID1 mm
Temperature ControlAir-Circulating Thermostatic System (37 °C)
Max. Sample Throughput120 samples/hour
Optical DetectionLED-based Photometer with 24-bit ADC
SoftwareAACE v5.x (Automated Analysis Control Environment)
Channel CapacityUp to 4 independent analytical channels per bench
ComplianceISO 15682, EPA Methods 300.0, 353.2, 365.2, ASTM D5179, D5504
Pumping SystemPrecision Micro-bore Peristaltic Pump with CrMoV Steel Rollers (±8 µm tolerance), Kel-F® fluidic tubing
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OriginGermany
Manufacturer TypeAuthorized Distributor
Origin CategoryImported
ModelM90S
Instrument TypeOnline Water Quality Analyzer
Measurement PrinciplesPhotometric (Colorimetric), Ion-Selective Electrode (ISE), and Specialized High-Purity Water Analysis Modules
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BrandSEAL
OriginGermany
ModelAQ2
Product TypeDiscrete Analytical System
Sample Volume3–500 µL per test
Reagent Consumption250 µL per test
Wavelength Range400–900 nm
Flow Cell20 mm thermostatted quartz cuvette
Sample Capacity100 positions
Reagent Positions15 × 45 mL refrigerated vials
Reaction TimeUp to 16 min
Power Supply100–250 V, 50/60 Hz, 450 W
Dimensions (W×D×H)680 × 550 × 410 mm
Weight40 kg
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BrandSEAL
OriginGermany
ModelAA500
Product TypeContinuous Flow Analyzer
Wavelength Range250–1000 nm
Sample Capacity180 positions / 120 cups
Reagent Positions34
Flow Cell Path Length10–50 mm (selectable)
Light SourceLED
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OriginGermany
Manufacturer TypeAuthorized Distributor
Origin CategoryImported Instrument
ModelTraccs 2000
PricingUpon Request
Product TypeContinuous Flow Analyzer
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BrandUnity
OriginUSA
ModelSpectraStar 2400
Instrument PrincipleGrating-scanning NIR spectrometer
Wavelength Range1200–2400 nm
DetectorInGaAs (temperature-stabilized)
Scan Time<8 s per scan
Data Interval1 nm
Photometric Range3.0 Abs
Photometric Noise20 µAU @ 1640 nm
Slit BandwidthAdjustable (typically 10 nm)
Sample Area225 mm²
Operating SystemWindows 2000
Display10" VGA touchscreen
Power100–240 VAC, 50/60 Hz, 75 VA
Dimensions (2400D)336 × 343 × 406 mm, 15.9 kg
Dimensions (2400W)330 × 368 × 381 mm, 13.6 kg
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BrandSEAL
OriginGermany
Manufacturer TypeAuthorized Distributor
Product CategoryImported
ModelAA3
Product TypeContinuous Flow Analyzer
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BrandSEAL
OriginGermany
ModelAA100
Product TypeContinuous Flow Analyzer
Wavelength Range250–1000 nm
Sample CapacityConfigurable (via rotary autosampler)
Reagent PositionsUnlimited (modular reagent rack support)
Flow Cell Path Length10 mm
Light SourceHigh-Stability LED
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BrandSEAL
OriginNetherlands
ModelAS2
Sample Capacity180 × 0.5–2 mL vials or 120 × 4–10 mL vials
Compatible PlatformsSEAL AA500 Continuous Flow Analyzers, SEAL segmented flow analyzers, AACE software
MaterialStainless steel & PEEK probe
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BrandSEAL
OriginGermany
ModelAQ270
Product TypeDiscrete Analyzer
Wavelength Range350–880 nm
Sample Capacity57 positions
Reagent Positions18
Cuvette Path Length10 mm
Light SourceHalogen Lamp
ComplianceEPA-approved methods, ISO 15681, ISO 11923, ISO 7827
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BrandSEAL
OriginGermany
ModelAQ300
Product TypeDiscrete Flow Analyzer
Wavelength Range350–880 nm
Sample Positions57 or 97 (selectable)
Reagent Positions18 (with cooling capability)
Cuvette Path Length10 mm (quartz)
Light SourceQuartz-halogen lamp
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BrandSEAL
OriginGermany
Instrument Type3D Robotic Autosampler
Sample CapacityUp to 540 positions (6 sample racks)
Needle ConfigurationSingle, dual, or quad needle options
Compatible PlatformsSEAL AA3 and QuAAtro continuous flow analyzers
Sample Vial Sizes4 mL, 5 mL, and 11 mL
Dedicated Standard & QC RacksYes
Random Access SamplingYes
Acid-Resistant Needle MaterialPTFE-coated stainless steel
ComplianceDesigned for GLP/GMP environments with audit-ready operation
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BrandSEAL
OriginGermany
ModelAQ400
Product TypeDiscrete Flow Analyzer
Wavelength Range350–880 nm
Sample Capacity80 or 120 positions
Reagent Positions26 (with refrigerated and ambient zones)
Cuvette Path Length10 mm (optional 20 mm)
Light SourceQuartz-halogen lamp
Detection PrincipleStatic photometric absorbance measurement using Hellma quartz flow cuvettes
Linear Range0.0001–3.500 AUFS
Resolution0.0001 AUFS
Reaction Temperature Control30–45 °C (±0.1 °C)
Sample Volume Precision0.5–500 µL (0.5 µL increments)
Reagent Dispensing10–600 µL (0.5 µL increments)
Max. Throughput200 samples/hour
CalibrationUp to 20-point multi-level calibration
Auto-dilutionUp to 100× pre- and post-analysis
ComplianceCE, UL, CSA
Power220 V, 50 Hz, 150 W
Dimensions (W×D×H)70 × 22 × 62 cm
Weight43 kg
Operating Environment5–40 °C, 5–95% RH
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OriginGermany
Manufacturer TypeDistributor
Origin CategoryImported
ModelDiaMon
Instrument TypeOnline Water Quality Analyzer
Spectral Range250–780 nm
Detection PrincipleDiode Array Spectrophotometry (UV-Vis)
ProcessorIntel 586DX @ 133 MHz
Memory4 MB RAM
Data VisualizationConfigurable Graphical & Tabular Historical Trends
ProgrammabilityUser-Defined Scripting Support
Compliance ContextDesigned for continuous monitoring in compliance with ISO 7027, ASTM D515, EPA Method 353.2, and EU Directive 2000/60/EC (Water Framework Directive)
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BrandSEAL
OriginGermany
Manufacturer TypeAuthorized Distributor
Origin CategoryImported
ModelXY-2 / XY-3
Product CategoryContinuous Flow Analyzer (CFA) Sampler
Sample Positions270 / 180 / 120
Max Sample Vessel Height150 mm
High-Profile Variant CompatibilityStandard 300 mL Laboratory Tubes
InterfaceUSB 2.0
Optional Injector DilutorSEAL Injector Dilutor 3 (2.5 mL / 5 mL / 10 mL syringe volumes)
Software ControlAACE v5.x or later with variable-speed dilution protocol support
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BrandSEAL
OriginGermany
ModelSampler 6
Instrument TypeAutomated Sampler for Continuous Flow Analyzers (CFA)
Sample Capacity89 positions (10 mL vials)
Sampling ModeRandom-access, non-sequential
Wash PumpIntegrated visual wash pump
Probe CompatibilityChemically resistant stainless steel needle (acid-compatible)
Sample TypesAqueous, acidic, and buffered solutions
IntegrationDesigned exclusively for SEAL AA1001 Continuous Flow Analyzer
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BrandSEAL
OriginNetherlands
Manufacturer TypeAuthorized Distributor
Origin CategoryImported
ModelMiniLab
PricingUpon Request
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BrandSEAL
OriginAustralia
Manufacturer TypeAuthorized Distributor
Origin CategoryImported
ModelBD50s
Instrument TypeElectric Heating Block Digestion System
Power Supply (Digestion Block)220–260 VAC, 50/60 Hz
Power Supply (Controller)100–260 VAC, 50/60 Hz
Dimensions (Block)60 cm W × 28 cm D
Dimensions (Controller)25 cm W × 24 cm D
Weight (Block)21.5 kg
Weight (Controller)2.5 kg
Capacity50 × 75 mL or 50 × 100 mL or 28 × 250 mL
Temperature RangeAmbient to 450 °C
Temperature Accuracy±2 °C
Max Ramp RateAs low as 1 °C/min
Programmable MethodsUp to 20 methods, each with up to 30 steps
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