Turbidity Meters
Sigma Aldrich Fine Chemicals Biosciences CfTM 750 succinimidyl este
Near-IR Cf dyes are a group of fluorescent dyes with absorption and emission wavelengths between 650 and 800 nm. Near-IR Cf dyes are significantly brighter and more stable than any other commercial dye of similar wavelengths. Near-IR Cf dyes offer important advantages over traditional visible light dyes. Because cellular or tissue components produce minimal autofluorescence in the near-IR region near-IR dyes have the potential to offer highly specific and sensitive detection in complex biological systems. Also because light with wavelength in the near-IR region has strong tissue penetration near-IR dyes are ideal for in vivo fluorescence imaging an emerging field that has advanced rapidly in recent years. futhermore near-IR dyes are also excellent dyes for in- or on-cell and membrane-based Western assays. Cf750 is so bright it can be excited at 633 nm but still emits stronger fluorescence at ~770 nm than APC-based tandem dyes making the dye particularly useful for flow cytometr
Sigma Aldrich Fine Chemicals Biosciences System 45TM vessel with th1EA
Cylindrical style vessel has a 2Amm PTfE valve at the top with a GL 18 threaded side port. The 32Amm threaded bottom valve assembly incorporates System 45(TM) technology. The coarse fritted disc is easily removed from the PTfE adapter for cleaning and/or replacement. PTfE top and bottom valves require 1/4-turn to open or close. Valve stems have a 1/4-28 internal thread in the stem which allows a variety of adapters to be used. for male 1/4-28 and male Luer adapters see Cat. No. Z417416 and Z417424.