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Erbium has a strong absorption in uv and visible range, It is used in HPlc calibration for the wavelength accuracy verification of the PDA detector.
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Why propyl paraben used in HPLC calibration?
propyl paraben being a stable compound with reproducible chromatographic parameters used as a internal standard for the calibration of the HPLC systems
What is an Erbium laser used for?
An Erbium laser is commonly used for cosmetic surgery. It can be used to treat skin conditions like wrinkling around ones eyes, mouth or forehead. You should use Erbium lasers if one has acne.
Why internal standard you used in hplc method?
Internal standard can be used for calibration by plotting the ratio of the analyte signal to the internal standard signal as a function of the analyte concentration of the standards. This is done to correct for the loss of analyte during sample preparation or sample inlet.
Which are the top commercial uses for HPLC?
HPLC is used to analyze, identify, purify and quantify organic compounds.
What is the use of calculating asymmetry factor in hplc?
it is used to check the efficiency of the chromatography column used
Why propyl paraben used in HPLC calibration?
propyl paraben being a stable compound with reproducible chromatographic parameters used as a internal standard for the calibration of the HPLC systems
Why uracil used in hplc calibration?
higly unretainable and has high absorption at 260 nm
Why uracil is used in hplc calibration?
higly unretainable and has high absorption at 260 nm
How do you distinguised np-hplc and rp-hplc?
NP-HPLC is "Normal Phase" HPLC, wherein the solvents used are less polar than the substrate in the HPLC column (e.g. using hexane or dichloromethane with a silica HPLC column). RP-HPLC is "Reverse-Phase" HPLC, wherein the solvents used are more polar than the substrate in the HPLC column (e.g. using Water and Methanol with a octadecylsilane (ODS or C18) column).
What is an Erbium laser used for?
An Erbium laser is commonly used for cosmetic surgery. It can be used to treat skin conditions like wrinkling around ones eyes, mouth or forehead. You should use Erbium lasers if one has acne.
Erbium-doped optical fiber is used for what purpose?
It is used to make Erbium doped fibre amplifiers (EDFA) and also used to fabricate DFB lasers.
Why internal standard you used in hplc method?
Internal standard can be used for calibration by plotting the ratio of the analyte signal to the internal standard signal as a function of the analyte concentration of the standards. This is done to correct for the loss of analyte during sample preparation or sample inlet.
Definition of standard in HPLC?
Answer: HPLC standards are an indispensible tool for analytical HPLC applications. They are used to monitor column performance & calibrate detector response.
What is the molecular formula for silver perchlorate?
The silver ion is Ag+ and the perchlorate ion is ClO4-, so silver perchlorate would have the formula of AgClO4.
When calibration required?
Calibration is required during installation of new instrument to check whether the instrument works as per specifications or not. Calibration is required when instrument is shifted from one location to another. Calibration of instrument is done when instrument is used again after maintenance. Some instruments such as weighing balance are calibrated daily while some instruments or equipments such as HPLC, GC, etc., are calibrated or validated at specified interval as per standard operating procedure (SOP).
What is difference bet GLC and HPLC?
GLC has a stationary liquid phase and gas moving phase HPLC had a stationary solid phase and liquid moving phase HPLC is done under high pressure. HPLC can be used for thermally unstable compounds as opposed to GLC HPLC can be used for polar or low volatile compounds as opposed to GLC
What is hyperchloride?
Hyperchloride is used mistakenly for perchlorate.
