Cuvetes fluorómetro
No que diz respeito a aplicações de fluorescência, utilize cuvetes QVARZ® com quatro janelas óticas transparentes. Os nossos cuvetes de stock são feitos de quartzo fundido de alta qualidade e podem ser usados para medir comprimentos de onda que variam de 190 a 2500 nm. Para elevados rácios sinal-ruído, este UV-vis transparente também tem quase pouca autofluorescência. Todos os fluorómetros comuns podem utilizar cuvetes com comprimentos de caminho que variam entre 0,1 e 50 mm.
As cuvetas fluorescentes QVARZ® são compostas por matérias-primas de maior qualidade, precisamente construídas para máxima clareza ótica, e têm paredes paralelas de espessura consistente para maximizar a transmissão e diminuir a refração. Os nossos cuvettes moldados são triturados de bolor, assegurando a uniformidade cuvette-a-cuvette e a boa reprodutibilidade.
E mais:
Cuvetes e Células Espectrofotómetros
Cuvettes e células fluídas
Personalize células e cuvetes às suas necessidades
Sobre a Medição da Fluorescência
A fluorescência acontece quando uma amostra recebe energia proveniente de radiação eletromagnética, geralmente luz UV (fotões). A energia “excita” as moléculas, fazendo com que o eletrão de um átomo “chumeu” de um estado de energia mais baixo para um estado de excitação de energia superior. O estado animado tem uma vida útil relativamente curta (1-100 ns). Quando um eletrão regressa a um estado de energia inferior, a energia é libertada sob a forma de luz (isto é, fluorescência). Um monocromador filtra um pouco da luz fluorescente antes de chegar ao detetor. A luz fluorescente é emitida em todas as direções, no entanto, para reduzir a interferência, o detetor está normalmente posicionado a 90 graus no feixe de luz de excitação. Como resultado, são necessárias cuvettes transparentes de quatro lados para aplicações de fluorescência.
13%
(VFSM10) 3.5mL Standard Fluorescence Cuvette com tampa de parafuso, moldado, fundo plano, lightpath 10mm
Original price was: $227.00.$199.00Current price is: $199.00.22%
(VFSF2) 3.5mL Standard Fluorescence Cuvette com tampa de parafuso, fundido, Lightpath 10mm
Original price was: $190.00.$149.00Current price is: $149.00.15%
(VFSM3J) 3.5mL Standard Fluorescence Cuvette com tampa de parafuso, moldado, novo, lightpath 10mm
Original price was: $257.00.$219.00Current price is: $219.00.14%
(VFSM41) 3.5mL Standard Fluorescence Cuvette com tampa de parafuso, moldado, fundo redondo, lightpath 10mm
Original price was: $211.00.$182.00Current price is: $182.00.15%
(VFSM52) 3.5mL Fluorescence Cuvette com tampa de parafuso interior, moldado, novo, lightpath 10mm
Original price was: $217.00.$185.00Current price is: $185.00.14%
(VFSMF2) 0.7mL Fluorescence Cuvette com tampa de parafuso, moldado, base redonda, Lightpath 2mm
Original price was: $308.00.$266.00Current price is: $266.00.
14%
(VFSMR5) 1.75mL Fluorescence Cuvette com tampa de parafuso, moldado, base redonda, Lightpath 5mm
Original price was: $211.00.$182.00Current price is: $182.00.20%
(VFSM26) 3.5mL Fluorescence Cuvette com tampa de parafuso, 5 paredes claras, moldada, Lightpath 10mm
Original price was: $458.00.$368.00Current price is: $368.00.15%
(VFSM1) 3mL Fluorescence Cuvette com tampa de parafuso, altura curta 48x10x10 mm
Original price was: $335.00.$288.00Current price is: $288.00.15%
(VFSM29) 3mL Fluorescence Cuvette com tampa de parafuso, Altura Curta 48×12.5×12,5 mm
Original price was: $335.00.$288.00Current price is: $288.00.
41%
(VFPFA) 3.5mL Fluorescence Cuvette with PTFE Stopper, Fused, Lightpath 10mm
Original price was: $66.00.$39.00Current price is: $39.00.20%
(VFPMC) 3.5mL Fluorescence Cuvette com Rolha PTFE, Moldada, Lightpath 10mm
Original price was: $205.00.$166.00Current price is: $166.00.13%
(VFOFO3) 3.5mL Fluorescence Cuvette with PTFE Lid, Fused, Flat Base, Lightpath 10mm
Original price was: $41.00.$36.00Current price is: $36.00.42%
(VFOMQ) 3.5mL Fluorescence Cuvette com Tampa PTFE, Moldado, Base Plana, Lightpath 10mm
Original price was: $168.00.$99.00Current price is: $99.00.14%
(VFOMR) 3.5mL Fluorescence Cuvette com Tampa PTFE, 5 Paredes Claras, Moldada, Lightpath 10mm
Original price was: $191.00.$166.00Current price is: $166.00.6%
(VFOMS) 2×1.75mL Fluorescence Tandem Cuvette, 4 Paredes Claras, Moldada, Lightpath 10mm
Original price was: $274.00.$260.00Current price is: $260.00.13%
(VFOFY) 1,75mL Fluorescence Cuvette com Tampa PTFE, Fundido, Base Plana, Lightpath 5mm
Original price was: $55.00.$48.00Current price is: $48.00.16%
(VFOM6) 1,75mL Fluorescence Cuvette com Tampa PTFE, Moldada, Base Plana, Lightpath 5mm
Original price was: $164.00.$138.00Current price is: $138.00.22%
(VFOF2) 0.7mL Fluorescence Cuvette with PTFE Lid, Fused, Flat Base, Lightpath 2mm
Original price was: $87.00.$68.00Current price is: $68.00.6%
(VFOF10) 0,8mL Short Height Cuvette, 10×12.5×12.5 mm, 4 Janelas, Fundido, Lightpath 10mm
Original price was: $52.00.$49.00Current price is: $49.00.5%
(VFOF14) 1,2mL Short Height Cuvette, 14×12.5×12.5 mm, 5 Janelas, Fundido, Lightpath 10mm
Original price was: $62.00.$59.00Current price is: $59.00.
9%
(VFOF40) 14mL Custom Cuvette, 40x26x26 mm, 4 Windows, Fused, Lightpath 20mm
Original price was: $174.00.$159.00Current price is: $159.00.16%
(VFOF47) 40mL Custom Cuvette, 47x34x34 mm, 4 Windows, Fused, Lightpath 30mm
Original price was: $236.00.$199.00Current price is: $199.00.27%
(VFOF22) 1.4mL Custom Cuvette, 22×10.5×10.5 mm, 4 Windows, Fused, Lightpath 8mm
Original price was: $119.00.$88.00Current price is: $88.00.6%
(VFOB15) 1.2mL Custom Cuvette, 15x12x12 mm, 4 Janelas, Coladas, Lightpath 9.5mm
Original price was: $52.00.$49.00Current price is: $49.00.6%
(VFOB17) 1.6mL Custom Cuvette, 17×12.5×13 mm, 4 Windows, Bonded, Lightpath 10.5/10 mm
Original price was: $52.00.$49.00Current price is: $49.00.6%
(VFOB20) 1.9mL Custom Cuvette, 20x12x12 mm, 4 Windows, Bonded, Lightpath 10 mm
Original price was: $52.00.$49.00Current price is: $49.00.15%
(VFOB08) 3mL Custom Cuvette, 33x8x23 mm, 5 Windows, Bonded, Lightpath 5/30 mm
Original price was: $103.00.$88.00Current price is: $88.00.15%
(VFOF104) 110uL Cuvette Personalizada, 10x6x6 mm, 4 Janelas, Fundido, Lightpath 4mm
Original price was: $84.00.$72.00Current price is: $72.00.16%
(VFOM104) 110uL Cuvette Personalizada, 10x6x6 mm, 4 Janelas, Moldado, Lightpath 4mm
Original price was: $175.00.$148.00Current price is: $148.00.16%
(VFOM103) 110uL Cuvette Personalizada, 10x6x6 mm, 4 Janelas, Moldado, Lightpath 3.5/4mm
Original price was: $175.00.$148.00Current price is: $148.00.11%
(VFOBS1) 0.35mL Semi-Micro Cuvette, Tampa PTFE, Colada, Largura 1mm, 4 Janelas
Original price was: $77.00.$69.00Current price is: $69.00.11%
(VFOBS2) 0.7mL Semi-Micro Cuvette, Tampa PTFE, Colada, Largura 2mm, 4 Janelas
Original price was: $77.00.$69.00Current price is: $69.00.11%
(VFOBS3) 1.05mL Semi-Micro Cuvette, Tampa PTFE, Colada, Largura 3mm, 4 Janelas
Original price was: $77.00.$69.00Current price is: $69.00.11%
(VFOBS4) 1.4mL Semi-Micro Cuvette, Tampa PTFE, Colada, Largura 4mm, 4 Janelas
Original price was: $77.00.$69.00Current price is: $69.00.11%
(VFOBS5) 1.75mL Semi-Micro Cuvette, Tampa PTFE, Colada, Largura 5mm, 4 Janelas
Original price was: $77.00.$69.00Current price is: $69.00.11%
(VFOFS1) 0.35mL Semi-Micro Cuvette, Tampa PTFE, Fundido, Largura 1mm, 4 Janelas
Original price was: $155.00.$138.00Current price is: $138.00.11%
(VFOFS2) 0.7mL Semi-Micro Cuvette, Tampa PTFE, Fundido, Largura 2mm, 4 Janelas
Original price was: $155.00.$138.00Current price is: $138.00.11%
(VFOFS3) 1.05mL Semi-Micro Cuvette, Tampa PTFE, Fundido, Largura 3mm, 4 Janelas
Original price was: $155.00.$138.00Current price is: $138.00.11%
(VFOFS4) 1.4mL Semi-Micro Cuvette, Tampa PTFE, Fundido, Largura 4mm, 4 Janelas
Original price was: $155.00.$138.00Current price is: $138.00.11%
(VFOFS5) 1.75mL Semi-Micro Cuvette, Tampa PTFE, Fundido, Largura 5mm, 4 Janelas
Original price was: $155.00.$138.00Current price is: $138.00.27%
(VFOMS1) 0.35mL Semi-Micro Cuvette, Tampa PTFE, Moldada, Largura 1mm, 4 Janelas
Original price was: $463.00.$338.00Current price is: $338.00.27%
(VFOMS2) 0.7mL Semi-Micro Cuvette, Tampa PTFE, Moldado, Largura 2mm, 4 Janelas
Original price was: $463.00.$338.00Current price is: $338.00.27%
(VFOMS3) 1.05mL Semi-Micro Cuvette, Tampa PTFE, Moldada, Largura 3mm, 4 Janelas
Original price was: $463.00.$338.00Current price is: $338.00.27%
(VFOMS4) 1.4mL Semi-Micro Cuvette, Tampa PTFE, Moldado, Largura 4mm, 4 Janelas
Original price was: $463.00.$338.00Current price is: $338.00.27%
