进口t-em型双通道荧光光度计

可特别设计用于细胞间的钙或活体细胞的ph值改变情况，可通过同时检测2束不同的荧光发散光谱强度来实现。荧光染料被一束激发光谱所激发，并同时制造出2束发散光谱。其结果a和b可显示细胞的变化。信号比例为a:b或b:a

is specifically designed for the measurement of intracellular calcium or ph changes in live cells through the simultaneous detection of two different fluorescence emission spectra intensities. fluorescent dyes are excited by one excitation spectrum producing simultaneously two emission spectra. the resulting a and b signals indicate changes within the cell. a ratio signal is provided for a:b or b:a.

procedures

static or kinetic analysis

polarization measurements

hplc high pressure liquid chromatography

low pressure liquid chromatography

samples

liquid/continuous flow

applications

medical environmental

clinical agricultural/food

pharmaceutical industrial

forensic oceanography

analytical biochemistry

specifications

range：200-700nm (standard)，200-900nm (available)

sensitivity：full scale, 10 picogram quinine, sulfate (10.0ppt) with instrument noise, less than 5% in respect to full scale.

linearity：　+1% of full scale

two digital displays: 000-1999

two recorder signal outputs: 0 to 2 volts

power: 220 vac., 0.8 amp at 50/60 hz.

dimensions wdh: 39.4×44.5×21.6cm, 19.5 kg;

optical system: exclusive seven element quartz optical system focuses excitation energy onto the sample with emmitted fluorescence energy collected and focused to two (2) photomultiplier tubes providing two (2) individual emission channels. excitation and emission filters are placed in collimated (parallel) light paths for optimum filter performance.

optical filters: excitation and emission filter holders are readily accessible to accommodate glass and/or interference filters. filters covering the entire fluorescent spectral range are available.

light source: 100 watt high intensity mercury vapor lamp radiates the full uv and visible spectrum of energy.

photomultiplier tubes: two 200-700nm photomultiplier tubes are standard. extended range (200-900nm) photomultiplier tube is also available.

blank suppression and variable gain: two sets of front panel controls are provided for the suppression of blank fluorescence background to zero and adjustment of full scale signal to a specific number.

display: two independent fluorescent intensity levels are digitally displayed and may be recorded simultaneously with a recorder signal.

ratio output: a ratio signal is provided for a:b or b:a.

note: when used in l rather than t configuration, operation and performance is identical to the model a1 fluorometer.

dual emission fluorometer ordering information

model t-em filter fluorometer

• 100 watt high intensity mercury vapor lamp

• seven element all quartz optical system

• two sets of electronic blank suppression controls

• two sets of sensitivity ranges - .001, .01, .1, 1.0

• two digital displays 000-1999

• two se-lected photomultiplier tubes 200-700 nm

six position excitation aperture wheel

• one excitation and two emission filter holders

• three position carrier for 75 x 10mm round cells

• two output signals for a and b channel＊

• ratio output signal a:b or b:a＊

• 115 vac., 50/60 hz operation

note: 220 vac. operation available upon request

accessories and attachments

round cells

square cells

carriers

adapters

constant temperature assembly

magnetic stirrer

strip chart recorder

fluorometric reference

se-lected photomultiplier tubes

alternate illumination source

hplc flow cell

large volume flow cells

three polarizer filter holder attachments

replacement items