Laboratory Technologies

Seawater Analysis

seawater analysisSeawater Analysis

If you're looking to automate your sea water analysis methods, do what hundreds of leading laboratories around the world do and choose the high precision SEAL AutoAnalyser. Thanks to the robust design and low detection limits it's the first choice of sea water analysis laboratories and research institutes worldwide.  The AA3 AutoAnalyser,  and QuAAtro AutoAnalysers  are all ideal for onboard sea water analysis.

 SEAL analysers use the principles of air- segmented flow injection analysis to measure the precision of the bubble pattern, flowcell cleanliness, chemistry drift and other performance-critical parameters before and during a run. More than 30 hydraulic, optical, electrical and chemical parameters are quantified and written into a performance log which gives a long-term record of instrument and method performance.

Contact us on 02 4735 5054 or

USEPA, ASTM, ISO, AOAC, DIN, CORESTA and other international regulatory compliant methods.

Advantages of Automated Sea Water Analysis Methods using SEAL AutoAnalysers

SEAL AutoAnalysers are designed specifically to cope with the demands of researchers looking to automate their sea water analysis methods.  SEAL AutoAnalysers are in routine ship-board use from the Arctic Ocean to the Weddell Sea and they are recognised worldwide for their ability to stand up to tough on-board conditions..  The latest instruments for sea water analysis methods use LED light sources as they are unaffected by vibration and are extremely stable.  A special bench fixing kit is available for the SEAL Analytical QuAAtro to quickly and securely mount it into a floating laboratory.

Pre-run Check Quantifies System

A simple pre-run check quantifies the bubble pattern, baseline, detector, flowcell and light source in a few minutes and creates a printed record of the results. This is ideal for labs which need auditable proof that the analyser is working correctly, and as a valuable aid to troubleshooting.

High Precision Segmentation

For seawater analysis the key factor in reproducibility, which is critical for detection limits, and  the composition of the liquid segments passing through the analyser. Each segment must contain the same proportion of reagent and sample, and the arrival time of each segment at the reagent injection points must be very precise.

Seal Electronic Air Injection vs. Mechnical Air Injection

SEAL AutoAnalyser achieve this high precision with electronic air injection.  The timing of the air injection is determined by a chopper wheel which intercepts a light beam, this triggers a solenoid valve to inject the air. In contrast, mechanical systems which use a cam and lever device are less accurate even when new, and the air timing becomes progressively less precise as the pump ages. With mechanical air injection the bubble precision on a typical nutrient manifold is around 2%. With electronic injection it is improved to less than 1%. On the QuAAtro it is 0.2%.     

Contact us on 02 4735 5054 or

 

 

Enquire Now

AA3 HR - AutoAnalyser

Image 1

SEAL Analytical

Based on continuous air-segmented flow analysis principles this AutoAnalyser is specially designed for automated colorimetric determination of dissolved nutrients in environmental samples. With features not found in competing AutoAnalysers you will save money, lower your detection limits and achieve consistent results.

USEPA, ASTM, ISO, AOAC, DIN, CORESTA and other international regulatory compliant methods.

SEAL AA3 HR AutoAnalyser

The Seal AA3  HR AutoAnalyser uses  continuous segmented flow analysis principles to provide significant advantages for environmental applications. With reaction times up to 20 minutes, even complex procedures like distillation can be automated. Dialysers can be built into the system for elimination of interference from dirty or colored samples. The proprietary in-line UV digestion procedure conforms to the ISO Standard Methods for automated measurement of Total Cyanide and Total Phosphorus.

The AA3 HR continuous segmented flow analysis principles utilised makes it ideal for all types of water, sea water analysis, soil, plant and fertiliser analysis when high reproducibility and low detection limits are required. It is also the world's most reliable chemistry analyser, with exceptional reproducibility, ultra-low detection limits and robust modular design.

The AA3 HR's clever design features will save you money, time and space. Features such as Multitest Manifolds, extend any single channel analyser into a multi channel analyser and allow you to rapidly  change from one test to another, with only a reagent exchange.

For laboratories with smaller workloads we also have the AA1 AutoAnalyser. See the Downloads tab for more information.

Contact us on 02 4735 5054 or 0061 2 4735 5054 (from NZ) or

USEPA, ASTM, ISO, AOAC, DIN, CORESTA and other international regulatory compliant methods.

SEAL AutoAnalyser Advantages

Thanks to years of consultation with industry leaders, SEAL Analytical has continued to develop the unique features of the AA3 HR AutoAnalyser and continuous segmented flow analysis. This has helped the AA3 HR AutoAnalyser maintain its position as the first choice in fully automated systems for analysing nutrients in soil and water. When choosing an AutoAnalyser it’s worth taking a look at some of the features exclusive to the SEAL's air segmented flow injection analysis, and features designed specifically for environmental applications.

Continuous Segmented Flow Analysis to Reduce Inter-sample Dispersion

  • Not all continuous flow analysers are created equal, the AA3 HR uses air segmented flow analysis  principles, relying on a reaction stream segmented with bubbles of air or nitrogen to reduce inter-sample dispersion. 

Same Wavelength Referencing in Real-time

  • Each channel on the AA3 HR AutoAnalyser has its own high resolution digital photometer, including: its own light source (lamp or LED), wavelength filter, fibre optics, and true dual-beam technology, with same wavelength referencing in real time.

Multi-test analytical chemistry cartridges

  • Allows several different tests to be performed with one manifold, and with only an exchange of reagents.

Fully Automated Modular System

  • With the modular system consisting of a sampler, pump, chemistry test module, photometer and application software, the system or its components can be easily upgraded.

And More..

  • Easily expanded to 8 additional channels
  • Ultra-Low detection limits
  • High resolution (HR) Digital Photometers standard
  • Technologically advanced detection system
  • No adjustment required after lamp or flowcell replacement
  • Multispeed peristaltic pumps
  • Reliable unattended operation
  • Low reagent consumption
  • Ability to add additional samples after run started; Intuitive software operating under Windows.
  • Fully automatic operation- start up to shut down
  • 40-100 samples per hour
  • Over 1000 applications available and under continual development
  • USEPA, ASTM, ISO, AOAC, DIN, CORESTA and other international regulatory compliant methods available

For laboratories with smaller workloads we also have the AA1 AutoAnalyser. See the Downloads tab for more information

Contact us on 02 4735 5054 or 0061 2 4735 5054 or

USEPA, ASTM, ISO, AOAC, DIN, CORESTA and other international regulatory compliant methods.

Continuous Segmented Flow Analysis Advantages

Wide range:

  • Dilution of sample is rarely necessary
  • High throughput - 3000+ results per day
  • Ultra Low Detection Limits
  • Less than 1ul reagent use per sample


Modular AutoAnalyser Design for high flexibility

  • A One Channel AA3 HR AutoAnalyser comprises a Sampler, Pump, Chemical Manifold, Detector and Computer. This nutrient analyser can easily be extended by adding a second Chemical Manifold and a second Detector. The AA3 HR AutoAnalyser then becomes a two channel system, which measures two different analytes at the same time. Additional Detector and Manifolds can be added, as required, up to a total of 8 channels.

Dual Range Methods

  • Most multitest methods are also dual-range; with separate pump tubes for high and low ranges. You can test an extremely wide range of sample concentrations. For example, the AA3 HR AutoAnalyser method for Nitrate in Seawater can measure up to 8500 ug N/L and has a detection limit of 0.14 ug/L. This same manifold can be used to measure Ammonia and Silicate.

AACE Software for Windows

  • AutoAnalyser Control and Evaluation software for all Continuous Flow Analysers. For large or small systems with high or low workloads: AACE makes daily operation quicker and easier.

Digital Colorimeter

  • High resolution to increase the working range
  • Bubble through the flow cell to increase sampling rate
  • Extended Linear Range due to advanced flowcell design
  • Dual beam operation with same wavelength compensation
  • Ultra low detection limits IE: 0.12 ug/L for Phosphate in Seawater

High Precision Pump

  • Multi-speed motor with High Speed for fast wash out
  • Optional Valves for Reagent Switching or Auto Dilution
  • Software Control and at the pump
  • Built in Leak Detector

Multi-test Manifold

  • Multi-Test Manifolds extend any size analyser to a multiple channel analyser
  • When changing from one test to another only the reagents need to be exchanged.
  • Lowers purchase and maintenance costs as well as space saving
  • Multi-Test Manifolds for:
    • Water & Waste Water nutrient analysis
    • Soil and Plant extracts
    • Seawater
    • Tobacco
    • Feeds
    • Fertilizers
    • Cell Liquors

Chemistry Manifold

  • Holds up to TWO chemistry method manifolds
  • Glass Mixing coils - Chemically inert - clear view of the flow
  • Heating bath with high-precision proportiona control and replaceable coil

XY2 / XY3, XYZ AutoSampler

  • High capacity random access Sampler for large work loads.
  • Up to 180 Samples in cups or tubes in two racksl
  • Separate Rack for Standards

For laboratories with smaller workloads we also have the AA1 AutoAnalyser. See the Download tab for more information.

Contact us on 02 4735 5054 or 0061 2 4735 5054 (from NZ) or

Seal analytical logoSEAL Analytical Limited is a UK based developer of automated wet chemistry using air segmented flow injection analysis and discrete analysers for use in environmental and industrial laboratories.  SEAL has over 25 years experience with automated discrete analysis.  Visit www.seal-analytical.com

In 2002, SEAL formed a wholly owned US subsidiary based in Milwaukee, Wisconsin to promote the sales of wet chemistry discrete analysers in the US and Canada.  Subsequent to this, SEAL's international roll-out continued with distributors being approved in European and Asian Pacific countries.

In 2004, SEAL became the exclusive distributor of Bran+Luebbe Continuous Flow Analysers in the USA, UK and Ireland.

In November 2006, SEAL completed the acquisition of the Bran+Luebbe Continuous Flow Analyser (CFA) and Near InfraRed  (NIR)  Analyser businesses.   This brings together over 50 years of CFA analysis experience of B+L , formally Technicon Industrial Systems, with SEAL's 25 year track record in discrete analysis, allowing SEAL to offer a truly complimentary solution in Automated Chemical Analysis for environmental and industrial laboratories throughout the world.

In August 2008, SEAL joined the Porvair group of companies. Porvair is a specialist filtration and environmental technology group.  This will allow SEAL to continue its dynamic growth  and success worldwide.

Visit SEAL Analytical website: www.seal-analytical.com
 

Contact us on 02 4735 5054

Over 1000 Methods for AutoAnalysers

SEAL has over 1000 methods for the AutoAnalyser & Segmented Flow Analyser, giving you the best reproducibility and the lowest detection limits. SEAL also supplies a wide range of Multi-test Manifolds which allows you to analyse a large number of different parameters with a single channel system.

SEAL AutoAnalyser methods are fully compatible to USEPA, AOAC and ISO standard methods. The list below is a partial list of methods, please contact us if you don't see the application you are interested in.

Link to AutoAnalyser Multi-test methods and detection limits.

  • Alkalinity
  • Alkalinity (methyl orange)
  • Alkaloids, total
  • Ammonia (salicylate)
  • Ammonia (phenate)
  • Boron
  • Bromide
  • Calcium
  • Chloride
  • Chromium (6)
  • Fluoride
  • Hardness
  • Iron
  • Iron, total and free dissolved iron
  • Iodide
  • Magnesium
  • Manganese
  • Nicotine
  • Nitrate
  • Nitrate-Nitrite, Cadmium Column
  • Nitrate-Nitrite, Cadmium Coil
  • Nitrite
  • Nitrogen, total (NH3 NO3 only)
  • Nitrogen, total Kjeldahl
  • Phenol
  • Phosphate
  • Phosphate (molybdovanadate)
  • Phosphorous, total Kjeldahl
  • Potassium
  • Silicate
  • Sodium
  • Sulfide
  • Total Volatile Bases
  • Total Volatile Acidity

 

Contact us on 02 4735 5054 or 0061 2 4735 5054 (from NZ) or

 

Enquire Now

QuAAtro - Chemistry Analyzer

Image 1
Image 2

SEAL Analytical

The QuAAtro is a microflow system that uses the principles of continuous segmented flow analysis:  high throughput - 3000+ results per day; low reagent use; ultra low detection limits and less than 1ul reagent use per sample.

USEPA, ASTM, ISO, AOAC, DIN, CORESTA and other international regulatory compliant methods.

QuAAtro39 Continuous Segmented Flow Analyser

The QuAAtro39 is a high performance Microflow Analyser and is the latest generation of the original world-class Technicon AutoAnalyser systems. The QuAAtro AutoAnalyser uses the principles of Continuous Segmented Flow Analysis which offer:  high throughput - 3000+ results per day; low reagent use; ultra low detection limits and less than 1ul reagent use per sample.

The QuAAtro39 AutoAnalyser is the world's most automated continuous segmented flow analyser with: microflow hydraulics, heated manifolds, high resolution detectors and advanced software. The QuAAtro39 also supports Multitest Manifolds to save you time, maintenance and money. Multitest Manifolds allow you to test for different nutrients with no hardware changes.

 

The result... Reduced operator time ... Lower Training Costs ... System Checks its own performance ... low detection limits and high reproducibility.

Contact us on 02 4735 5054 or

Advantages of the QuAAtro39 Segmented Flow Analyser

  • QuAAtro39 uses micro flow hydraulics, enabling high sample rates with low sample and reagent consumption.
  • QuAAtro39 is ideal for water and seawater analysis when high-throughput and ultra-low detection limits are required
  • USEPA, ASTM, ISO, AOAC, DIN, CORESTA and other regulatory compliant methods are available
  • One click start-up
  • Reliable unattended operation
  • Automatic performance checks before, during and after a run
  • Can generate more than 1,000 results per day
  • Multi-test manifolds for different nutrients with no hardware changes
  • 5 channel seawater QuAAtro available
  • Easily transportable

Contact us on 02 4735 5054 or

USEPA, ASTM, ISO, AOAC, DIN, CORESTA and other international regulatory compliant methods.

QuAAtro Segmented Flow Analyser Features

Microflow Technology - 1mm ID Glass

QuAAtro is a microflow system, the internal diameter of all glassware being 1mm. This reduces reagent consumption and increases throughput, with most methods running 100 – 120 samples hour. The optimal bubble frequency for each method is programmed by silent air valves to improve flow stability.

Manifolds and Detectors are Heated to 370 Degrees C

The integrated enclosed manifold and detector share the same temperature control system and are heated to 37º C. This reduces ownership cost and increases ease of use. It also means the system is not as susceptible to changes in environmental temperature. High temperature heating baths, distillation and dialyzers are available for methods that require them.

Automated Start-up and Shut-down

QuAAtro is designed to make life as easy as possible - with automatic start-up, automatic run-time monitoring and automatic shutdown.

High Resolution Digital Photometer

  • Ultra Low Detection Limits
  • UV Optimised
  • 24 bit digital resolution
  • optional LED Light Sources
  • Bubble through the flowcell technology

Heated Chemistry Manifold

  • No Need for Heating Baths
  • Micro-flow Hydraulics - 1mm ID Glass
  • Low waste
  • Fast Chemistries
  • Glass allows easy visual check

High Precision Peristaltic Pump

  • 3 speed pump
  • 30 pump tube positions
  • Automatic shutdown
  • Easily replaceable Platens
  • High Precision Pump Rollers
  • 4 chemistries on one console


QuAAtro Liquid Autosamplers

  • Available in different sizes
  • Add samples at any time
  • Automatic shutdown
  • Various rack sizes
  • Fast and Robust
  • Dedicated standards location
  • 4 chemistries on one console

QuAAtro AutoAnalyser Software (AACE)

  • LIMS compatible
  • Intuitive - Easy to use
  • Add samples at any time
  • Standard and GLP versions
  • Easy QuAAtro system control
  • Quality Control features

Multi-test Manifolds

  •  Multitest Manifolds allow the testing of different nutrients without hardware exchange.

Contact us on 02 4735 5054 or

Methods For Analysing Water, Wastewater, Seawater & Low Level Water

SEAL has an extensive library of methods for analysing water, wastewater, seawater and low level water, that give you the best reproducibility and the lowest detection limits. SEAL also supplies a wide range of Multi-test Manifolds which allows you to analyse a large number of different parameters with a single channel system.

SEAL AutoAnalyser methods are fully compatible to USEPA, AOAC and ISO standard methods. The list below is a partial list of Multi-test methods, please contact us if you don't see the application you are interested in.

Link to QuAAtro Multi-test methods and detection limits.

  • Alkalinity
  • Ammonia 
  • Calcium
  • Chloride 
  • Cyanide
  • Hardness 
  • Nitrate/Nitrite 
  • Nitrite 
  • Nitrogen (Total Kjeldahl)
  • Phenol
  • Phosphate 
  • Phosphorus (Total Kjelhdal)
  • Silicate

Contact us on 02 4735 5054 or 0061 2 4735 5054 (from NZ) or

 

 

Seal analytical logoSEAL Analytical Limited is a UK based developer of automated wet chemistry discrete analysers for use in environmental and industrial laboratories.  SEAL has over 25 years experience with automated discrete analysis.  Visit www.seal-analytical.com

In 2002, SEAL formed a wholly owned US subsidiary based in Milwaukee, Wisconsin to promote the sales of wet chemistry discrete analysers in the US and Canada.  Subsequent to this, SEAL's international roll-out continued with distributors being approved in European and Asian Pacific countries.

In 2004, SEAL became the exclusive distributor of Bran+Luebbe Continuous Flow Analysers in the USA, UK and Ireland.

In November 2006, SEAL completed the acquisition of the Bran+Luebbe Continuous Flow Analyser (CFA) and Near InfraRed  (NIR)  Analyser businesses.   This brings together over 50 years of CFA analysis experience of B+L , formally Technicon Industrial Systems, with SEAL's 25 year track record in discrete analysis, allowing SEAL to offer a truly complimentary solution in Automated Chemical Analysis for environmental and industrial laboratories throughout the world.

In August 2008, SEAL joined the Porvair group of companies. Porvair is a specialist filtration and environmental technology group.  This will allow SEAL to continue its dynamic growth  and success worldwide.

Visit SEAL Analytical website: www.seal-analytical.com
 

Contact us on 02 4735 5054

How Does Continuous Segmented Flow Analysis differ to fromFlow Injection Analysis?

For automated sea water analysis methods, it's important to understand how an AutoAnalyser using the principles of air-segmented flow analysis provides advantages over flow injection analysis.

Based on the principles used in a continuous flow analyser, the SEAL Analytical segmented flow analysis system consists of an autosampler, a peristaltic pump, a chemistry manifold, a detector and data acquisition software. Sample and reagents are pumped continuously through the chemistry manifold. Air bubbles are introduced at regular intervals forming unique reaction segments which are mixed using glass coils. Glass is ideal, as it is inert, stays clean and enables easy visual checks.

In Continuous Segmented Flow Analysis, all reactions run to completion. The ratio of sample to reagents in the detector reaches a constant maximum value – the steady-state condition. This ensures maximum sensitivity resulting in lowest detection limits and exceptional reproducibility. Variations in reaction time, temperature and sample matrix do not affect the results as they do in other colorimetric techniques, such as flow injection analysis, where the reaction is not brought to completion.

Higher analysis rates and lower reagent consumption are achieved with Bubble- through-the-flowcell operation. It also makes the system easy to use. The linear range is increased for most methods by the flowcell design with planar end faces and fiber-optic coupling which ensures parallel light transmission through the flowcell.

The AA3 HR is a macroflow system, the internal diameter of all glassware being 2 mm. This enables more complex and non-homogenous sample matrices to be run without clogging. The AA3 HR  chemistry analyzer allows for long reaction times as well as the automation of on-line distillation, UV digestion and other complex procedures. Most methods run at 60-70 samples hour.

Contact us on 02 4735 5054 or

website design © 2009 stralia web
Experience BlueMountainsAustralia.com
website content © 2009 Fluidquip Australia