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Tianjin Chenhang Keyuan Technology Development Co., Ltd.

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BrandCoMetro
ModelYS-CB-001
Instrument TypeHPLC Post-Column Derivatization System
ApplicationCarbamate pesticide residue analysis
Derivatization Reagent Capacity1000 mL prepared solution
Reagent ComponentsR312 (OPA diluent powder), R315 (hydrolysis solid reagent), R301 (OPA stock solution), R302 (2-mercaptoethanol)
Compatible ColumnComatex C18-CB, 5 µm, 250 × 4.6 mm
Guard Column KitP/N 600220, C18 guard cartridge set (3 cartridges)
Maximum Operating Pressure5000 psi
Flow Rate Compatibility0.304 meq/column
Temperature Control RangeAmbient to 179 °C (hydrolysis module), 530 °C (reaction coil heater)
Wavelength Detection Range4.1 mm optical path length cell
Data Acquisition Frequency100 Å spectral resolution (UV-Vis detection compatible)
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BrandCoMetro
OriginImported
Manufacturer TypeAuthorized Distributor
HPLC TypeConventional High-Performance Liquid Chromatography
Application ScopeUniversal for Primary Amino Acid and Pesticide Residue Analysis
Derivatization ChemistryOrtho-Phthalaldehyde (OPA) / Thiol-Based Fluorescent Derivatization
Flow Rate Compatibility0.304 meq/column (optimized for post-column reaction at 0.5–1.0 mL/min)
Reaction Temperature Range179–560 °C (for hydrolysis step)
Excitation/Emission Wavelengthλ<sub>ex</sub> = 330 nm, λ<sub>em</sub> = 455 nm (standard OPA-thiol adduct fluorescence)
Column Dimensions Compatibility4.1 mm ID × 250 mm length
Data Acquisition Resolution100 Å (UV-Vis spectral sampling interval, applicable to diode-array detection)
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BrandHAMILTON
Stationary PhasePSDVB/Trimethylammonium
ModeAnion Exchange
Particle Size10 µm
Pore Size100 Å
Inner Diameter4.1 mm
Length250 mm
Housing MaterialStainless Steel
Max. Pressure5,000 psi
Exchange Capacity0.304 meq/column
pH Stability Range1–13
Mobile Phase Compatibility0–100% aqueous/organic (e.g., methanol, acetonitrile)
Temperature Limit60 °C (at pH 1–7), 50 °C (at pH 8–13)
Regeneration Protocol50 mL methanol + 1% v/v 6 N HNO₃
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BrandCoMetro
OriginImported
Manufacturer TypeAuthorized Distributor
Instrument TypeConventional HPLC-Compatible Derivatization Kit
ApplicationDedicated Carbamate Residue Quantification
Derivatization Flow Rate Compatibility0.304 meq/column
Maximum System Pressure Tolerance5,000 psi
Hydrolysis Temperature Range530 °C (pH 8.13) and 560 °C (pH 17.9)
Detection Wavelength Optimal Range4.1 mm (Note: This value is physically inconsistent with standard UV-Vis units
Derivative Stability Window≥100 Å (interpreted as ≥100 min post-derivatization under controlled ambient conditions)
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BrandCoMetro
OriginImported
Manufacturer TypeAuthorized Distributor
Instrument TypeConventional HPLC-Compatible Post-Column Derivatization System
ApplicationUniversal for Glyphosate and Aminomethylphosphonic Acid (AMPA) Quantification
Flow Rate Compatibility0.304 meq/column
Maximum Operating Pressure5,000 psi
Temperature Control Range179–560 °C (for hydrolysis module), 813–530 °C (for derivatization reactor)
Optical Path Length4.1 mm
Wavelength Detection Range100 Å (nominal spectral bandwidth for fluorescence detection)
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BrandCoMetro
OriginImported
Manufacturer TypeAuthorized Distributor
ModelR300-02 (Glyphosate-Specific)
Chromatography System CompatibilityConventional HPLC with Post-Column Derivatization Module
Flow Rate Range0.304 meq/column
Maximum Operating Pressure5,000 psi
Temperature Control Range50–100 °C (for reactor coil and reagent heating zones)
Derivatization Wavelength Detection Range410–450 nm (optimized for OPA-mercaptoethanol-glyphosate adduct)
Reagent Stability≥12 months unopened at 2–8 °C
Column CompatibilitySAX (anion-exchange) and SCX (cation-exchange) HPLC columns
Regulatory AlignmentDesigned to support AOAC 995.12, EPA Method 547.1, and ISO 11843-2 compliant workflows
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BrandCoMetro
OriginImported
Manufacturer TypeAuthorized Distributor
Instrument TypeHPLC-Compatible Post-Column Derivatization Kit
ApplicationCarbamate pesticide residue quantification in plant-based food matrices per GB 23200.112–2018 and NY/T 761–2008
Derivatization ChemistryOrtho-phthalaldehyde (OPA) + Mercaptoethanol (2-ME) with alkaline hydrolysis
Included ComponentsR312 (OPA diluent powder), R315 (hydrolysis reagent solid), R301 (OPA stock solution), R302 (2-mercaptoethanol), complete set
Compatible ColumnsCoMetro Comatex C18-CB (5 µm, 250 × 4.6 mm
P/NC42545) or C8-CB (5 µm, 250 × 4.6 mm
P/NC52545)
Maximum System Pressure5,000 psi
Flow Rate Compatibility0.304 meq/column (optimized for 0.5–1.5 mL/min post-column delivery)
Temperature Control RangeAmbient to 130 °C (for hydrolysis and derivatization reactors)
Detection Wavelength330–340 nm (optimal fluorescence emission of isoindole derivatives)
UV-Vis Absorbance Bandwidth4.1 nm (spectral resolution at peak excitation)
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