|
Choosing a Cuvette: Optical Glass or Quartz |
|
|
|
Written by Lisa J Fulghum
|
|
 Synthetic quartz can be used in deep UV applications and is recommended for fluorescent applications, as it does not exhibit background fluorescence. Quartz cuvettes (absorbance, fluorescence and flow) are shipped individually packaged, glass cuvettes are shipped in packages of 10 cuvettes. These economicquartz and glass cuvettes are ideal for precision measurements because of their high quality materials used and their low manufacturing tolerances. Typical transmission curves of glass and synthetic quartz cuvettes are shown in the first figure at the right (cuvettes were empty, thickness 1.25 mm x 2, including surface reflections, measured with a TIDAS II against air as reference).
A complete transmission spectrum from 190 nm to 4 mm is shown in the second figure at the right (cuvettes were empty, thickness 1.25 mm x 2, including surface reflections).
| Cuvette Material |
Spectral Range ( >80% ) |
Transmission DifferenceBetween Different Cuvettes |
| Optical Glass |
350 – 2500 nm |
Less than 1% |
| Synthetic Quartz |
200– 2500 nm |
Less than 1% |
Cuvette Comparison Chart
| WPI PN |
Style |
material |
Polished windows |
path [mm] |
Dimensions [mm] |
volume [mL] |
Beam width [mm] |
| standard rectangular cuvettes |
| CUV2101-1 |
B |
Quartz |
2 |
1 |
3.5x12.5x45 |
0.35 |
10 |
| CUV2102-1 |
B |
Quartz |
2 |
2 |
4.5x12.5x45 |
0.7 |
10 |
| CUV2011-1 |
B |
Quartz |
2 |
5 |
7.5x12.5x45 |
1.7 |
10 |
| CUV1022-10 |
C |
Optical Glass |
2 |
10 |
12.5x12.5x45 |
3.5 |
10 |
| CUV2012-1 |
C |
Quartz |
2 |
10 |
12.5x12.5x45 |
3.5 |
10 |
| CUV2105-1 |
C |
Quartz |
2 |
20 |
22.5x12.5x45 |
7 |
10 |
| CUV2106-1 |
C |
Quartz |
2 |
30 |
32.5x12.5x45 |
10.5 |
10 |
| CUV2107-1 |
C |
Quartz |
2 |
40 |
42.5x12.5x45 |
14 |
10 |
| CUV2108-1 |
C |
Quartz |
2 |
50 |
52.5x12.5x45 |
17.5 |
10 |
| Self masking Semi micro Cell Cuvette |
| CUV2023-1 |
D |
Quartz |
2 |
5 |
7.5x12.5x45 |
0.7 |
4 |
| CUV2031-1 |
D |
Quartz |
2 |
10 |
12.5x12.5x45 |
1.4 |
4 |
| CUV2025-1 |
D |
Quartz |
2 |
20 |
22.5x12.5x45 |
2.8 |
4 |
| CUV2028-1 |
D |
Quartz |
2 |
50 |
52.5x12.5x45 |
7 |
4 |
| CUV2032-1 |
D |
Quartz |
2 |
10 |
12.5x12.5x45 |
1 |
3 |
| CUV2033-1 |
D |
Quartz |
2 |
10 |
12.5x12.5x45 |
0.7 |
2 |
| CUV2034-1 |
D |
Quartz |
2 |
10 |
12.5x12.5x45 |
0.35 |
1 |
| Self masking continuous flowthrough cell, Z=15 mm |
| CUV2063-1 |
E |
Quartz |
2 |
5 |
7.4x12.5x45 |
0.035 |
diameter 3 |
| CUV2061-1 |
E |
Quartz |
2 |
10 |
12.5x12.5x45 |
0.07 |
diameter 3 |
| CUV2065-1 |
E |
Quartz |
2 |
20 |
22.6x12.5x45 |
0.14 |
diameter 3 |
| CUV2066-1 |
E |
Quartz |
2 |
30 |
32.6x12.4x45 |
0.21 |
diameter 3 |
| CUV2062-1 |
F |
Quartz |
2 |
10 |
12.5x12.5x45 |
0.48 |
4x12 |
| Self masking continuous flow through cell, small input, large output, Z=8.5 mm |
| CUV2614-1 |
H |
Quartz |
2 |
10 |
12.4x12.4x35.6 |
0.03 |
diameter 2 |
| Micro Cell with black walls |
| CUV2674-1 |
J |
Quartz |
2 |
10 |
12.5x12.5x45 |
0.05 |
2 |
| Fluorescence |
| CUV2051-1 |
A |
Quartz |
4 |
10 |
12.5x12.5x45 |
3.5 |
10 |
| CUV2052-1 |
A |
Quartz |
4 |
10 |
12.5x12.5x45 |
1.4 |
4 |
| Long Path Cuvette |
| CUV2071-1 |
G |
Quartz |
2 |
100 |
102.5 x 22 diameter |
28 |
19 |
|
♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦
If you have any questions regarding spectroscopy, cuvettes, cuvette accessories or other WPI products,
give us a call toll-free
at 866.606.1974 or email us at
This e-mail address is being protected from spam bots, you need JavaScript enabled to view it
.
|
