MICROWAVE SCIENCE FOR BETTER CHEMISTRY
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PYRO SA

Pyro SA Unit

 

How the PYRO SA Sulphate Ashing works

The basic principles of operation are the same as the PYRO, with the addition of the Sulphate Ashing Module and the VAC-1000 Acid Scrubber. Sulfuric acid fumes released from crucibles inside the muffle furnace are continuously removed, through a quartz tube connected to an air-cooled quartz collection vessel mounted outside of the unit, and to the VAC-1000 acid scrubber module.

PYRO SA Sulphate Ashing System

Sulphate Ashing ModuleAshing test procedures performed on pharmaceutical, polymer, and food samples frequently involve the use of H2SO4. Hot sulfuric acid vapor released during these procedures is both hazardous to analysts and corrosive to equipment. In addition to these complications, sulphate ashing procedures are typically labor-intensive and timeconsuming, requiring manual fuming of acid from crucibles and 8-12 hours to complete.
Milestone has engineered a unique microwave system for sulphate ashing procedures. The PYRO Sulphate Ashing system enables analysts to add H2SO4 to samples and place crucibles directly into the microwave muffle furnace without a preliminary charring step. Tedious handling/monitoring of samples, and operator exposure to acid fumes, are eliminated.
The labstation is designed for complete operator safety and long life, and performs the complete procedure in only 60-90 minutes.
Sulfuric acid fumes released from crucibles inside the muffle furnace are continuously removed, through a quartz tube connected to an air-cooled quartz collection vessel outside the unit, and to the VAC-1000 acid scrubber module.

Typical Sulphate Ashing times

Sample

Microwave Ashing
Temp.(°C)

Microwave Ashing
Time(min.)

Traditional Ashing
Time(min.)

Lactose
600
60
480
NFT
800
50
480
Cellulose
800
80
500
Heavy oil
550
230
960
Antibiotics
850
65
480
Tartaric acid
800
80
5000

State of the Art User Interface

Pyro SA terminalThe PYRO SA is operated via a compact terminal with bright, full-color, touch-screen display.
The terminal runs the Milestone’s unique EasyCONTROL software, to provide simple, user-friendly control of the microwave sample preparation process.

  • Industrial grade touch-screen controller - 6,5” screen with 65.000 colours
  • VGA resolution 640x480 for sharp process graphics
  • 1 USB port for printer, 2 PS2 ports for mouse and keyboard, 3 RS 232 ports for external devices
  • Methods and runs are saved on a removable flash-card