BUCK SCIENTIFIC

Detil Produk :

Combination batch cold vapor & hydride generator p/n 1018

Overview:

Using the classic chemistry defined by the “Marsh Test” for Arsenic and other hydride forming metals, and the Hatch and Ott cold vapor reaction specifically for Mercury.  The model 1018 batch mode attachment for flame atomic absorption system allows low PPB and high PPT sensitivities for these elements, respectively.

Features:

•Cold vapor method employs a simple acid matrix for the sample
and uses Stannous Chloride for the reducing reaction to generate    
PPT level data for Mercury
•Simplified installation to existing flame AAS and predefined    
reaction chemistry allows an easy start up for rapid operation.
•Quartz absorption cells easily fit over burner head on Buck 210/211
AA systems using included bracket for both hydride and cold vapor  
operation.  Buck does not make brackets for other AA systems.
•Uses argon or Nitrogen for carrier gas, no need for Hydrogen for
most applications.
•Hydride generation technique commonly used for As, Sb, Se and  
occasionally for Sn, Bi, Te and Ge; uses common acids & sodium 
borohydride reducing agent for low PPB detection limits in    
prepared samples.
•Meets the requirements for EPA standard methods 245.1, SW-846
and the 200 series potable water tests.
•Compact size allows unit to be placed conveniently next to AA  
systems.
•Readily available reaction flasks provide convenient sample prep
and analysis in one vessel for high throughput work.

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Detil Produk :

230ATS Atomic Absorption Spectrophotometer

Features

• 10" color touchscreen
• Automated wavelength setting
• Automated slit selection
• Easy to operate 5 tab GUI (Graphical User Interface)
• Small and lightweight 39"L x 11"W x 12"H; 50 lbs
• 4 USB ports for printer, mouse, and keyboard
• Stable, Reliable, & Easy to use.
• 3 lamp turret with 3 lamp power supply,
• High energy optical design for better As & Se results
• Compact size and light weight
• Military grade design stands up to years of corrosive environment usage.
• D2 Background correction
• Low cost consumables and maintenance
• Manufactured and supported in the USA
• No service contract needed
• CE certified
• Leasing options available for domestic customers
• Free In-House training for the life of your instrument

Analytical Performance

The Buck 230ATS is a high energy, microprocessor controlled single beam atomic absorption spectrophotometer. Solid state electronics and simple optics provide the basis for our superior stability and sensitivity. The Ebert mount monochromator and user-selectable bandwidth give the system maximum flexibility. Our short-path dynamic nebulizer/burner configuration is highly efficient. An inert needle, precisely positioned in a high flow venturi, delivers sample to the corrosion proof impact bead. This results in a tremendously high nebulization effect for all types of sample matrices.

Buck Scientific 230ATS Atomic Absorption Spectrophotometer Optical Design

Optical Layout

From the time of the initial developments of Atomic Absorption Spectrometry (AAS) 50+ years ago the concept of the single beam optical system was always a fundamental design consideration. It allowed high energy throughput for the best detection limits, smaller and fewer components for the best size, and low manufacturing costs for the best price. Unfortunately, those original single beam AAS instruments 

made over 50 years were not used routinely due to the inherent deficiencies in the components of the time: poor hollow cathode lamp characteristics, noisy power supplies, drifting detectors & amplifiers, thermal expansion variations in optical components (mirrors, beam splitters, mounts, etc.), and so forth. To compensate for these deficiencies, and to help them stay in business; the AAS manufacturers developed the double beam optical system that became the standard design for AAS instruments over the next 30 years.

By using a high light-loss optical component (the beam splitter) to divide the signal beam from the hollow cathode lamp, served to correct for these low performance components; thus halving the available energy to make a sample measurement, compensation between the reference and sample beams was maintained. In later years, the addition of a deuterium continuum lamp for background correction introduced a second beam splitter; thus cutting the hollow cathode lamp energy in half again. This does not even take into account the 6-10 additional Mirrors used to define the optical path for these large, heavy and expensive (albeit very stable) double beam AAS instruments.

The Buck Scientific line of Atomic Absorption Spectrophotometers were designed to utilize the maximum energy of the single beam optical system. This allowed us to build a smaller, less expensive and more sensitive instrument. Background correction was achieved by inserting the deuterium lamp directly after the hollow cathode lamp.

A general rule of thumb for optical engineers is every time a mirror is introduced into a lightpath it deducts 10% of the energy. So in the case, less really is more!

With a 10" touchscreen computer on-board guiding you through your analysis, using an AA Spectrophotometer has never been easier! The All new Graphical User Interface utilizes five tabbed screens for; Analysis, controls, library, calibration, and samples. The 4 front facing USB ports make connecting a mouse and extracting data onto usb flash discs easy! Our Hideaway keyboard makes naming your samples easy and conveniently tucks in when not in use.

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Detil Produk :

410 Hg Analyzer

The Model 410 Mercury Analyzer incorporates the Hatch & Ott Cold Vapor Technique for the analysis of trace levels of mercury in drinking, surface and saline waters, as well as domestic and industrial wastes.  Perfect for EPA Method 245.1.

Features

Detection limit 10 PPT
400 mm Flowcell for lower detection levels
Complete analytical system includes Hg Cold
Vapor Kit
Affordable price perfect for labs with limited budget
Quick analysis and recovery time
Up to eight point calibration curve
Push button Quick-Purge for flow cell flushing
RS 232, Printer and analog recorder output
Simple to use-minimal operator training
D2 Background correction
Live technical assistance for the life of the instrument

Summary of method

This method is based on the absorption of radiation by mercury vapor at the 253.7nm line. The mercury is first reduced to the elemental state using the procedure outlined in EPA method 245.1. Air is then bubbled through the sample, speeding the mercury vapor to the absorption cell. The 253.7nm mercury line emitted by the lamp is absorbed by the vapor in the cell in proportion to the mercury concentration. The result is transmitted to the Digital readout which can be read directly in concentration of mercury. The instrument has a built-in “Peak-Picker” which reads peak area. The operator records this reading before purging. The instrument is then ready for the next sample.

Specifications
Detection Limits: 10 PPT (In a clean lab environment)
Absorption Cell: 400 mm pathlength with silica windows
Power Requirements: 115/220V.A.C, 50/60Hz, 80 watts
Dimensions: 39"W x 11"D x 12"H  Weight: 45 lbs.
Output:: RS232 and Analog
Background Correction: In-line Deuterium Lamp
Delivery system: Includes air dryer and charcoal filter

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Detil Produk :

300 Sodium Analyzer

Thermal Excitation of Sodium, Lithium and potassium in a low temperature flame gives atomic line emmision sufficient detection levels of:

8ppt Sodium
5ppt Lithium
15ppt Potassium.

Features
The optical range is 589 to 766
The system is designed for high throughput in the visible range with sufficient resolution to discriminate against flame background radiation
ASTM D1428 (20-200ppb) and ASTM D2791 (0.1-20ppb) procedures are simplified and freed from previous instrumental limitations associated with light leaks and electronic stability
Single point calibration in the range of 0-20ppb is practical.
High volume throughput rate of sampling system ensures integrity of sample purity during analysis
Available both as an online instrument and as a laboratory unit for grab samples
Outstanding ease of use
Economically priced

Specifications
Product Name: Model 300 Sodium Analyzer
Unit Price: QUOTE
Package Type: Each
Units Per Package: 1
Minimum Order Quantity: 1

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Detil Produk :

220AS Graphite Furnace Autosampler

Description

Complete system automation can be achieved using the Model 220AS autosampler. This fully programmable, random access system provides 40 sample cups and 8 calibration/QC cups. It can also perform automatic matrix modifier additions. Sample cups can be identified in the built-in table, and method development time can be reduced substantially.

Random access rotating tray accommodates 40 2ml sample vials, 8 10ml Standards vials.

All positions directly accessed through 210 or 211 built-in software via RS-232 connection.  Sample injection volume programmable from 1 to 50 micro-liters.

Injector probe arm 7 inches long, rotates 180º for delivery to graphite tube. Two separate matrix modifier injections programmable. Extra inject and dry cycles to increase injection volumes.  No external computer required for operation.

Specifications:

• Dimensions: 11in x 12in x 13in
• Weight: 20 Lbs
• 1-Year Full Parts & Labor Warranty
• Buck Scientific Support for Operations, Applications & Service

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Detil Produk :

Description

420 Continuous Flow Hydride Generator

The Model 420 is an easily adaptable accessory for flame AA spectrophotometers that allows PPT detectability for As, Se, Sb, Sn, Te, Bi, and Ge using standard hydride generation procedures. Using inert Polymer components and a reliable pumping system, users can quickly switch between flame and hydride.

Allows superior detection limits for hydride metals compared to graphite furnace AAS, typically in the 100-500 PPT.

Does not require hydrogen gas.

Easy installation and removal for changing back to flame operation.

Four order of magnitude dynamic range using the Buck model 210/211 system for highest accuracy over a wide range of sample concentrations minimizing dilutions and errors.

Inert tubing gives rapid equilibration time allowing typical throughputs of 50 samples per hour with reproducibilities of better than 2% at the 500 PPT level.

Detection Limits for 
Buck 420 Hydride Generator

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Detil Produk :

220GF Atomic Absorption Graphite Furnace Package

Our graphite furnace package includes:

1)    Buck 210VGP Atomic absorption spectrophotometer 

2)    Graphite furnace atomizer for PPB detection levels

2)    40-position Auto sampler with 8 Standard Positions

3)   10 pack of graphite tubes

Details:

Our rear mounted furnace saves precious bench space while heating tubes 2,800 degrees C in 1.5 seconds.  The upgrade to Graphite furnace allows you to use less sample, get PPB detection limits, and fully automate your analysis.

Our 40 position auto sampler measures the exact sample size each and every time, for outstanding reproducibility.

Unique Furnace Design:

The Model 220 GF accessory is the latest technology in PPB level analyses by graphite furnace AA. This fully integrated design uses an innovative, unique technology in a compact powerful furnace module. The quick-mount design permits rapid changeover between furnace and flame heads.

Capabilities:

The unique power supply in our furnace is capable of generating temperatures up to 2800°C in 1.5 seconds! This ultra-fast heating rate provides superior sensitivity in refractory elements and carbide-forming metals. The on-board firmware gives the analytical chemist full control of all aspects of the analysis. Gas flows (external, internal, mini-internal and auxiliary are standard), data collection (integrated, real-time, peak height or absorbance area) and electronic parameters for the hollow cathode lamps and the various background correction routines can all be programmed by the operator for maximum results.

Methods:

The Stabilized-Temperature Graphite Furnace AA (STGFAAS) procedure insures the highest accuracy and reproducibility. The 210VGP can initiate multi-step sequences with alternate gas purging for fully optimized STGFAAS.

System Integration:

The integration of the controlling software with the furnace module is comprehensive, and methods development time can easily be cut in half by using our protocols to refine an analytical method. The Model 220AS random-access auto-sampler will fully automate your analytical operations without the need for an external PC to control the system. By incorporating a sample ID table within the software, complete data handling can be done internally.

Specifications:

• Dimensions: 16"H x 12"W x 6"D, Net Weight equal to or less than 38 lbs
• Back-Mounted Microprocessor-Controlled, high-Frequency (2KHz) Graphite Furnace module with 3000ºC /second heating rate. Maximum Temperature 3200ºC
• Self contained assembly attaches directly to the 210 or 211 AA unit with no external computer interfacing cables or connectors. Contains Four (4) automatically controlled gas ports for sheath, internal, diluent, and auxiliary gas flows
• Pre-programmed furnace temperature programs for all elements
• No external computer required for operation.
• 1-Year Full Parts & Labor Warranty
• Buck Scientific Support for Operations, Applications & Service

220AS Autosampler

Complete system automation can be achieved using the Model 220AS auto-sampler.  This fully programmable, random access system provides 40 sample cups and 8 calibration/QC cups.  It can also perform automatic matrix modifier additions. Sample cups can be identified in the built-in table, and method development time can be reduced substantially.

Random access rotating tray accommodates 40 2ml sample vials, 8 10ml Standards vials.

All positions directly accessed through 210 or 211 built-in software via RS-232 connection

Sample injection volume programmable from 1 to 50 micro-liters

Injector probe arm 7 inches long, rotates 180º for delivery to graphite tube. Two separate matrix modifier injections programmable. Extra inject and dry cycles to increase injection volumes.

No external computer required for operation.

• Dimensions: 11" x 12" x 13"
• Weight: 20 Lbs
• 1-Year Full Parts & Labor Warranty
• Buck Scientific Support for Operations, Applications & Service
• *(common elements only)

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Detil Produk :

Features

210VGP Atomic Absorption Spectrophotometer

• Stable, Reliable, & Easy to use.
• 3 lamp power supply, (1 internal 2 external)
• High energy optical design for better As & Se results
• Compact and lightweight 39"L x 11"W x 12"H; 50 lbs
• Rugged military grade design stands up to years of abuse.
• D2 Background correction
• Free Buck Analyst Software
• Low cost consumables and maintenance
• Made in the USA
• Leasing available for domestic customers
• Free in-house training for the life of the instrument

The 210VGP is shipped ready for use. All operating conditions are pre-loaded in the internal computer, including lamp settings, secondary wavelengths, and alternate methods of analysis for over 60 elements by flame, furnace, or hydride techniques. The three lamp turret has individual controls for alignment and standby mode to keep lamps warm. Direct report generation to a printer or data linking to the Free Buck Analyst* software package is easily done using the parallel and RS-232 serial ports.

The Buck 210VGP is a high energy, microprocessor controlled, single beam atomic absorption spectrophotometer. Solid state electronics and simple optics provide the basis for our superior stability and sensitivity. The Ebert mount monochromator and user-selectable bandwidth gives the system maximum flexibility. Our short-path dynamic nebulizer/burner configuration is highly efficient. An inert needle, precisely positioned in a high flow venturi, delivers the sample to the corrosion proof impact bead. This results in a tremendously high nebulization effect for all types of sample matrices.

Deuterium Background Correction

This is the oldest and still most commonly used technique, particularly for flame AAS. In this case, a separate source (a deuterium lamp) with broad emission is used to measure the background absorption over the entire width of the exit slit of the spectrometer. In the 210VGP & Accusys 211 the deuterium lamp is in-line with the hollow cathode lamp, thus eliminating the need for a double beam system. The benefits of a single beam system are more energy, smaller size, lower cost, and a more sensitivity.

Specifications

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Detil Produk :

205 Atomic Absorption Spectrophotometer

Brand: Buck Scientific

Features

• Stable, Reliable, & Easy to use. 
• 3 lamp power supply, (1 internal 2 external)
• Great for samples with low dissolved solids
• Compact size and lightweight 39"L x 11"W x 12"H; 50 lbs
• Rugged military grade design stands up to years of abuse.
• D2 Background correction can be added for an extra $1,000 dollars.
• Free Buck Analyst Software
• Low cost consumables and maintenance
• Made in the USA
• Leasing options available for domestic customers
• Free in-house training for the life of the instrument

The 205 is shipped ready for use. All operating conditions are pre-loaded in the internal computer, including lamp settings, secondary wavelengths, and alternate methods of analysis for over 60 elements by flame and hydride techniques.

Direct report generation to a printer or data linking to the free Buck Analyst software* package is easily done using the parallel and RS-232 serial ports.

Analytical Performance

The Buck 205 is a high energy, microprocessor controlled single beam atomic absorption spectrophotometer. Solid state electronics and simple optics provide the basis for our superior stability and sensitivity. The Ebert mount monochromator and user-selectable bandwidth give the system maximum flexibility. Our short-path dynamic nebulizer/burner configuration is highly efficient. An inert needle, precisely positioned in a high flow venturi, delivers sample to the corrosion proof impact bead. This results in a tremendously high nebulization effect for all types of sample matrices.

Specifications

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Detil Produk :

Description

7315 Scanning UV/VIS Spectrophotometer

Here at Buck Scientific we have always enjoyed selling Jenway products because they are simple to operate, and reliable.  Two things Buck Scientific places enourmous importance on.  When you buy a Jenway product from Buck, you also get a lifetime of the best customer service in America.

The 7315 spectrophotometer is an advanced spectrophotometer with measurement modes for photometrics, concentration, spectrum scanning, quantitation and kinetics. This model will meet the demands of a wide range of applications especially those in clinical, veterinary, environmental and general QC laboratories.

• Press to read xenon lamp
• Icon driven software
• Save results to USB memory stick
• Store up to 48 methods in each measurement mode
• Supervisory security enabling the instrument or methods to be locked
• GLP settings including real time and date and user ID
• PC software included
• Full range of accessories available

Technical Specifications

Wavelength Range 198 to 1000nm
Wavelength Resolution 1nm
Wavelength Accuracy ±2nm
Spectral Bandwidth 5nm
Absorbance Range -0.300 to 2.300A
Transmittance Range 0 to 199.9%T
Photometric Accuracy ±1%T, ±0.005A
Concentration/Quantitation Range -300 to 9999
Resolution Selectable 1/0.1/0.01/0.001
Concentration Calibration Blank with a single standard or factor
Quantitation Calibration Blank with up to 6 standards
Kinetics Display Graphical & calculated concentration value
Kinetics Calibration Blank with a single standard or factor
Spectrum Scan Data Interval 1, 2 or 5nm
GLP Real time clock & calendar, operator ID
Light Source Xenon lamp
Outputs USB, Analog, RS232, Internal printer
Size (WxDxH) /Weight 11 in X 14 in X 8 in / 13.2 lbs.

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