Hello, I'm Dr. Melissa Hill, and I'm one of
the chemistry staff scientists here at Vernier
and our resident spectroscopist.
Today I'm here to talk to you about
a common question that our customers have,
which is what is the difference between
all of the spectrometers that Vernier offers.
In essence, which spectrometer is right for me?
Vernier offers three different types of spectrophotometers.
The first is visible, UV visible,
and then emission spectrometers.
There are two different types of visible spectrophotometers
that Vernier offers.
Visible spectroscopy occurs
between 380 and 900 nanometers.
Several samples that you could look at
in the visible spectrum are:
food coloring, nickel sulfate, crystal violet,
anything that's colored.
So if you're in high school, AP,
or introductory level college Chemistry and Biology,
chances are you want a visible spectrophotometer.
The two different visible spectrophotometers that Vernier offers
are the SpectroVis Plus and the Vernier Spectrometer.
The SpectroVis Plus is the least expensive spectrophotometer
and it has a broader specification range
for wavelength accuracy, photometric accuracy,
and reproducibility.
It also has fluorescence capabilities
with excitation at 405 and 500 nanometers.
The Vernier Spectrometer is our second visible spectrophotometer,
and it has a narrower specification range
for wavelength accuracy and reproducibility
and photometric accuracy.
Also, if you want to do emissions,
you can detach the light source from the Vernier spectrometer
and use a fiber-optic cable to measure emissions
from a gas discharge tube such as hydrogen.
Vernier's option for the UV-VIS spectrophotometer
is the Vernier UV-VIS Spectrophotometer.
The wavelength range of this spectrometer
is 220 to 800 nanometers.
This increased range, accuracy, and precision
make it ideal for higher level applications
such as college chemistry classes
like Organic Chemistry, Biochemistry,
Molecular Biology, and student research projects.
You can also use a separate fiber-optic cable
placed in the cuvette holder to measure emissions
from gas discharge tubes such as hydrogen.
You can see the full specification list
for all of these spectrometers on our website.
You can also see comparison graphs
for different samples for all of the spectrometers.
If you have any additional questions,
please email chemistry@vernier.com.