Product Overview

Next Generation Segmented Flow Analyzer Technology

The NexafloTM Series represents KPM's innovation in segmented flow analysis, built on three decades of analytical chemistry expertise through our AMS Alliance product brand. It presents a sophisticated and all-encompassing solution for the analysis of a wide array of samples, including sea water, drinking water, wastewater, environmental samples, soil, food, beverages, tobacco, and numerous other matrices. The NexaFlo™ Series fully automates the sample preparation process, allowing for both startup and shutdown to be remotely controlled from a computer. Such automation revolutionizes laboratory workflows by streamlining previously labor-intensive and complex sample preparation tasks.

Specific preparation methods enhanced by the NexafloTM Series include:

Method Parameter(s)
Inline Distillation Ammonia, phenolics, cyanides, Volatile acidity, Free and Total SO2 (Wine)
Inline Digestion For TP determination via persulfate and inline autoclave
Inline Extraction For MBAS Surfactants determination

The NexafloTM Series is perfect for labs requiring low detection limits in Segmented Flow Analysis, especially for marine and environmental testing to identify substances like ammonia in water.

It automates tasks for unattended operations, uses reagents efficiently, and minimizes waste. The NexafloTM Series supports up to 14 consoles, offering flexibility to handle complex lab needs. This enhances workflow, maintains accuracy and safety, and modernizes lab operations, boosting safety, efficiency, and precision across research areas.

Features

High Modularity: Integrated or combined instruments up to 14 channels, multiple flow cells, micro or macro flow. 

High Performance: Method-dedicated analytical console for high throughput, up to 120 samples/hour with auto-sampler. Full automation of routine and complex chemistries.

Advanced Software: Tailored for Segmented Flow Analysis, user-friendly analytical software manages all parameters across each channel, and controls accessories. It supports EPA / ISO methods available for different matrices.

Improved Usability and Simplified Maintenance: Diagnostic tools, LED Instrument Health Status Indicator, manifold leak detector. Integrated color touchscreen display to monitor and adjust your method and chemistries (available with the NexaFlo™ 450). Designed for easy access to components, simplifying servicing.

Compliance with Reference Methods.

Benefits

Improved Safety: Unique reagent containment to minimize risks of solvent vapor accumulation and reagent spillage, reduces clutter.

Increased Usability: Method-dedicated console approach and wide range of accessories cater to specific testing needs. Integrated color touchscreen display to monitor and adjust your method and chemistries (available with the NexaFlo™ 450).

Simplified maintenance: LED status indicator and enhanced accessibility to parts make maintenance straightforward.

Scalability and workflow: The modular design allows labs to adapt and expand testing capabilities with ease.

Chemical & Clinical

Applications

Analyze a Wide Array of Samples

Laboratories use NexaFlo™ to perform analyses on important parameters in water (drinking, waste, surface, sea, and ground water), soil extracts, tobacco, and beverages.

Common Analyses Include:

Drinking Water Waste Water Sea Water Soil/Fertilizer Tobacco Wine Dairy
Ammonia Enzymatic sugars Nitrate
Nitrates/Nitrite, TKN Nitrite Free total SO2 Nitrite
Phosphate, TP, TN Cyanide Volatile acidity Formaldehyde
MBAS Silicates Cr Starch Reducing sugars
Phenol Chloride K Sorbic acid

Laboratories use NexaFlo™ to perform analyses on important parameters in water (drinking, waste, surface, sea, and ground water), soil extracts, tobacco, and beverages.

Common Analyses Include:

Drinking Water: Ammonia, Nitrates/Nitrite, TKN, Phosphate, TP, TN, MBAS, Phenol, Cyanide
Wastewater: Ammonia, Nitrates/Nitrite, TKN, Phosphate, TP, TN, MBAS, Phenol, Cyanide
Sea Water: Ammonia, Nitrates/Nitrite, TKN, Phosphate, TP, TN, Silicates, Chloride
Soil: Ammonia, Nitrates/Nitrite, TKN, Phosphate, TP, TN, Cr, K
Fertilizer: Ammonia, Nitrates/Nitrite, TKN, Phosphate, TP, TN, Cr, K
Tobacco: Ammonia, Nitrite, Cyanide, Starch, Sorbic Acid
Wine: Enzymatic Sugars, Free Total SO2, Volatile Acidity, Reducing Sugars
Dairy: Nitrate, Nitrite, Formaldehyde

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Chemical & Clinical

Product Lineup

The NexafloTM Series features 2 distinct models:  

Nexaflo™ 400

Robust software displays on an external PC monitor (Windows 11)

Nexaflo™ 450

Robust software displays either on a 7 in. color touchscreen integrated onto the NexaFlo™ console, of on an external PC monitor (Windows 11).

Nexaflo™ 400 (left) and Nexaflo™ 450 (right) Segmented Flow Analyzers
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Chemical & Clinical

How it Works

The NexaFlo™ stands out as a premier Segmented Flow Analyzer (SFA), a specialized subset of Continuous Flow Analysis (CFA) techniques. SFA, with its distinctive method of segmenting the sample and reagents by air bubbles, falls under the broader CFA umbrella, combining the efficiency of continuous flow with enhanced precision and reduced cross-contamination. This unique approach enables the NexaFlo™ to conduct a wide array of analytical procedures effectively.

Designed to accommodate both micro-bore and macro-bore SFA methods, the NexaFlo™ allows for the execution of complex analyses ranging from straightforward colorimetric tests to intricate in-line distillations and digestions. The integration with an autosampler is essential for the management of sample intake, complemented by various sample preparation systems tailored to the selected analysis method. This comprehensive control and operation are facilitated through the NexaFlo™ software, potentially enhanced by the optional Auto Module.

Through this automation, NexaFlo™ is particularly adept at handling the most complex sample preparation and operational tasks. Techniques such as dialysis, distillation, UV digestion, injection, dilution, mixing, incubation, and liquid/liquid extraction are performed with unparalleled efficiency. All processes, including system start-up and shutdown, standard solution preparation, sample concentration adjustments, and automatic cleaning protocols, are fully automated, ensuring high throughput and precision in every analysis.

Chemical & Clinical

System Components

Each NexaFlo™ integrates a high-precision 3-speed peristaltic pump (medium, fast for startup and washout, and slow for low reagent consumption), an analytical manifold, a unique reagent containment drawer, and a UV-Vis Colorimeter detector (Flame Photometer and Fluorimeter available are options). Additionally, the NexaFlo™ 450 features an integrated color touchscreen display, whereas for other NexaFlo™ models, the software displays through an external PC.

Chemical & Clinical

Chemical & Clinical

Software

The NexaFlo™ analytical software is dedicated to Segmented Flow Analysis, a subsegment of Continuous Flow Analysis (CFA) technology. It prepares calibration standards, runs samples and quality controls, dilutes any out-of-range samples, prints reports and QC charts, exports data to LIMS, washes out the manifold and manages shutdown operations.

The software is user-friendly, efficient, and powerful, designed to simplify day-to-day operations. It runs the analysis of all parameters on each channel (up to 14 channels) and drives auto-samplers and accessories for automatic sample preparation. A simplified version of the NexaFlo™ software is run on NexaFlo™ 450 with a color touchscreen display for easier diagnostics, maintenance, device setup, significantly improving the user experience.

During analysis, the software monitors all performance details (heating bath temperature, voltages, detector outputs) and alerts the user of any problems.

The NexaFlo™ analytical software is dedicated to Segmented Flow Analysis, a subsegment of Continuous Flow Analysis (CFA) technology. It prepares calibration standards, runs samples and quality controls, dilutes any out-of-range samples, prints reports and QC charts, exports data to LIMS, washes out the manifold and manages shutdown operations.

The software is user-friendly, efficient, and powerful, designed to simplify day-to-day operations. It runs the analysis of all parameters on each channel (up to 14 channels) and drives auto-samplers and accessories for automatic sample preparation. A simplified version of the NexaFlo™ software is run on NexaFlo™ 450 with a color touchscreen display for easier diagnostics, maintenance, device setup, significantly improving the user experience.

During analysis, the software monitors all performance details (heating bath temperature, voltages, detector outputs) and alerts the user of any problems.

Chemical & Clinical

Specifications

NexaFlo™ 400 NexaFlo™ 450
Local display None 7 in. color touchscreen
Software NexaFlo™ Software (PC) NexaFlo™ Software (PC and Console)
LED System Health Yes
Leakage Detector Yes
Bubble Detector Yes
PC Operating System Windows 11
Reagent Up to 5 reagents
Main Pump 3-Speed
Integrated Heating Bath Optional
Detector Type UV/VIS colorimeter (default), flame photometer, fluorimeter
Flow Cell 10 mm to 50 mm path length (longer path lengths can be defined)
Networking LIMS compatible, Ethernet
Temperature 0 - 35 °C (32 - 95 °F)
Humidity 0 - 95% non-condensing
Weight 15 kg (33 lbs)
Dimensions Optional
Power 110-220V, 50/60 Hz
Chemical & Clinical

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