Home
Back
Ppm To Hertz Formula:
| From: | To: |
The Ppm To Hertz conversion calculates frequency offset in hertz from parts per million (ppm) using the spectrometer frequency in MHz. This is commonly used in NMR spectroscopy and radio frequency applications to determine precise frequency deviations.
The calculator uses the simple formula:
Where:
Explanation: The formula converts the relative frequency offset (ppm) to an absolute frequency offset (Hz) based on the operating frequency of the spectrometer.
Details: Accurate frequency offset calculation is crucial for NMR spectroscopy calibration, radio frequency tuning, and ensuring precise measurements in various scientific and engineering applications where frequency stability is critical.
Tips: Enter the ppm value (parts per million) and the spectrometer frequency in MHz. Both values must be positive numbers. The calculator will compute the corresponding frequency offset in hertz.
Q1: What is ppm in frequency terms?
A: Parts per million (ppm) represents a relative frequency offset where 1 ppm equals 0.0001% of the operating frequency.
Q2: Why is this conversion important in NMR?
A: In NMR spectroscopy, chemical shifts are often reported in ppm, but actual frequency offsets depend on the spectrometer's magnetic field strength (operating frequency).
Q3: Can this calculator be used for radio frequencies?
A: Yes, this conversion is applicable to any frequency measurement where relative offsets in ppm need to be converted to absolute frequency in hertz.
Q4: What are typical ppm values in NMR?
A: Chemical shifts in NMR typically range from 0-15 ppm for most nuclei, with specific ranges depending on the nucleus being studied.
Q5: How accurate is this conversion?
A: The conversion is mathematically exact. Accuracy depends on the precision of your input values for ppm and spectrometer frequency.