High pressure microwave-assisted flow digestion system using a large volume reactor-feasibility for further analysis by inductively coupled plasma-based techniques

2015 ◽  
Vol 30 (9) ◽  
pp. 1898-1905 ◽  
Author(s):  
Thiago Linhares Marques ◽  
Helmar Wiltsche ◽  
Herbert Motter ◽  
Joaquim Araújo Nóbrega ◽  
Günter Knapp
Keyword(s):  
High Pressure ◽  
Large Volume ◽  
Biological Samples ◽  
Inductively Coupled Plasma ◽  
Inductively Coupled ◽  
Microwave Assisted ◽  
Heated Volume

Food and biological samples were digested automatically in a high pressure (40 bar) flow digestion system with a large volume reactor (13.5 mL heated volume).

Microwave-Assisted Vapor-Phase Nitric Acid Digestion of Small Biological Samples for Inductively Coupled Plasma Spectrometry

1998 ◽  
Vol 52 (6) ◽  
pp. 900-907 ◽  
Author(s):  
Dula Amarasiriwardena ◽  
Antoaneta Krushevska ◽  
Ramon M. Barnes
Keyword(s):  
Nitric Acid ◽  
Vapor Phase ◽  
Biological Samples ◽  
Inductively Coupled Plasma ◽  
Closed Vessel ◽  
Acid Digestion ◽  
Inductively Coupled ◽  
Microwave Assisted ◽  
Microwave Apparatus ◽  
Nitric Acid Digestion

The applicability of microwave-assisted, vapor-phase nitric acid digestion of small biological samples in closed-vessel microwave systems is examined for the inductively coupled plasma atomic emission spectroscopy (ICP-AES) determination of 10 elements (Al, As, Ca, Cu, Cd, Fe, Mn, Mo, Pb, and Zn). A 1.8 mL quartz sample container geometry was optimized for the successful decomposition of 50 to 90 mg of powdered biological samples. Microwave energy was efficiently coupled by addition of 250 μL of distilled deionized water to the sample. A single microwave-assisted, vapor-phase acid sample digestion was accomplished within 30 min (including cooling time) at ∼1200 psi pressure and 450 W microwave power in a commercial pressurized microwave decomposition (PMD) system. Multiple microwave-assisted, vapor-phase acid digestions were achieved at moderately high pressure (400 to 480 psi) and 230 °C with a second closed-vessel microwave apparatus. The results for 10 elements in biological standard reference materials agree well with the certified values.

Evaluation of a custom single Peltier-cooled ablation cell for elemental imaging of biological samples in laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS)

2016 ◽  
Vol 31 (4) ◽  
pp. 1030-1033 ◽  
Author(s):  
J. S. Hamilton ◽  
E. L. Gorishek ◽  
P. M. Mach ◽  
D. Sturtevant ◽  
M. L. Ladage ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Laser Ablation ◽  
Biological Samples ◽  
Inductively Coupled Plasma ◽  
Peltier Element ◽  
Elemental Imaging ◽  
Inductively Coupled ◽  
Icp Ms ◽  
Plasma Mass Spectrometry ◽  
Biological Sampling

A new single Peltier element ablation cell is described and its applicability to biological sampling discussed to evaluate its performance.

Sign in / Sign up

Export Citation Format

Share Document