An Agilent 7700× ICP-MS instrument with Mass Hunter Workstation software for ICP-MS, version B.01.03 (Tokyo, Japan) was used for the analysis of thirteen elements: Aluminium (Al); microminerals iron (Fe), manganese (Mn), cobalt (Co), nickel (Ni), copper (Cu), zinc (Zn), selenium, and molybdenum (Mo); and heavy metals tin (Sn), arsenic (As), cadmium (Cd), and lead (Pb). The optimised operating conditions are summarised in Table 2 . The concentrations of the metallic elements were calculated from the obtained external calibration lines, with each line constructed from eight calibration points at 1–1000 μg L−1 concentration levels and an additional blank sample measured under the same conditions and adjusted by least-squares regression analysis. The final results are the average of three replicates.
7700 icp ms instrument
Manufactured by Agilent Technologies
Sourced in Japan
The 7700 ICP-MS instrument is a laboratory equipment manufactured by Agilent Technologies. It is designed for inductively coupled plasma mass spectrometry (ICP-MS) analysis. The core function of this instrument is to detect and quantify trace elements in a variety of sample types.
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3 protocols using 7700 icp ms instrument
1
Multielement Analysis of Food Samples
2
Microwave-Assisted Digestion for ICP-MS Analysis
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A microwave system (Multiwave 3000, Anton Paar) was employed for complete digestion of plant material for ICP-MS analysis. Approximately 0.1 g of dried and homogenized plant material (leaves, seeds) was digested using 4 ml of concentrated HNO3 (66%) and 2 ml of H2O2 (33%). The microwave run started with a 10 min power ramp followed by 30 min at 1400 W and finished with 15 min of cool down. A certified reference material “hay powder” (Community Bureau of Reference, No 129) was used for control of the digestion quality. A 7700 ICP-MS instrument (Agilent) was employed for determination of approx. 20 elements following the manufacturer’s instructions.
3
Multi-element Analysis in Wine Samples
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Multi-element determination was performed on an Agilent 7700 ICP-MS instrument. In accordance with the analytes of interest, the collision/reaction cell was in "He and No gas mode". For the ICP-MS analysis, the following mass-to-charge ratios (m/z) were recorded: 23Na, 24Mg, 31P, 39K, 44Ca, 63Cu, 59Co, 52Cr, 64Zn, 78Sn, 56Fe, 55Mn, 7Li, 9Be, 11B, 51V, 88Sr, 137Ba, 27Al, 109Ag, 60Ni, 75As, 118Sn, 202Hg, 208Pb, 121Sb, 111Cd, 47Ti, 71Ga, 90Zr, 93Nb, 105Pd, 125Te, 139La, 146Nd, 147Sm, 165Ho, 169Tm, 172Yb, 182W, 189Os, 197Au, 205Tl, 232Th, 238U. Here, 45 Sc (lg/L) was used as an internal standard to correct instrument drift. Two spiked wine samples were prepared with selected elements in order for the method's accuracy to be accessed through the recovery. The selected metals were Pb, Cd, As, Cr, Ni, Fe, Mn, Zn, Se, Hg, and Sb, cited in Table 4. The recovery of all selected metals was within the accepted limits of 80-120% according to Table 4. The instrument and accessories were PC-controlled by Mass Hunter software.
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