Chemical Analysis

ICP Spectrometer
Model
:
JY 24
Make
:
Jobin-Yvon, France, Sequential ICP Analyzer
Elements analyzed
:
can analyze ~ 72 elements in the periodic table including those such as boron, silicon etc.,
Monochromator
:
HR 640 monochromator incorporating a holographic grating with 2400 grooves/mm with a linear dispersion of 0.6nm/mm
Instrument Resolution
:
0.010 nm
Sample intake
:
About 1 ml/min Min
Detection Limits
:
Varies according to the element. Can be as low as 0.07 ppb for Mg to 20ppb for some of the rare earth elements
Contact Person
:
B.V.Narayana (bvn@materials…)
Atomic Absorption Spectrometer
Model
:
Series AA Spectrometer
Make
:
Thermo Electron Corporation
Elements analyzed
:
Common elements including base metals and alkaline earth metals
Range
:
upto 5 ppm
Sensitivity
:
~ 0.05 ppm
Faculty Incharge
:
S.Subramanian
Contact Person
:
R.J.Deshpande (rjd@material…)

High performance liquid chromatography (HPLC) from Waters (Identification, estimation and purification of macromolecules/oligomers/polymers)

Pump
:
Model 515
Column
:
Sunfire (TM) Reversed-phase HPLC column C18, 5 µ m (4.6 x 250 mm column), Operating range – pH: 2-8, columns stable upto 6000 psi. Best for purification and impurity profile assays, (Solvents-Acetonitrile)
Detectors
:
Waters 2414 (RI Detector), Waters 2489 (UV/Vis Detector)
Faculty Incharge
:
S.Subramanian (ssmani@materials.iisc.ernet.in)

Size exclusion chromatography (GPC/SEC) from Waters (For macromolecules/polymers molecular weight distribution analysis)

Pump
:
Model 515
Column
:
Styragel HT 6E THF (7.8 x 300 mm), measuring MW range from 5000-10 7 . Equipped with Waters temperature control module II, working range from ambient to high temperature (140 °C) analysis (Solvents-TCB, THF).
Detectors
:
Waters 2414 (RI Detector).
Faculty Incharge
:
Praveen C R (praveen@materials.iisc.ernet.in)