The CD 250 is a standalone holder that provides temperature control, dry gas purging and magnetic stirring as needed to a wide range of cuvettes or other samples. This versatility is accomplished using a cuvette carriage which firmly mounts within the temperature controlled tower of the CD 250. Cuvette carriages are available for several kinds of cuvettes, including those that are square, rectangular or cylindrical, as well as other samples such as small plates or films. Other carriages can be inexpensively designed as needed. Fused silica windows may be placed on each side of the sample or cuvette to minimize convection losses. Use the CD 250 primarily for absorbance measurements, although depending on the carriage design, an additional optical port at 90 degrees to the excitation may be available for observation of fluorescence or photochemical excitation. Use the CD 250 for work in the biological range of 0 °C to 105 °C. With the correct carriage design and sample, extend temperature ranges to below -40 °C or up to 150 °C. Operate the TC 1/Single Temperature Controller using the menu button, control via optional program T-App, or write your own program for control.cd250 是一個(gè)獨(dú)立的支架, 可根據(jù)需要為各種試劑盒或其他樣品提供溫度控制、干氣凈化和磁攪拌。這種多功能性是通過(guò) cd 250 的溫度控制塔內(nèi)牢固地安裝在 cd 250 內(nèi)的 cuvette 托架來(lái)實(shí)現(xiàn)的。立方車廂可用于幾種類型的立方, 包括正方形、長(zhǎng)方形或圓柱形的切割機(jī), 以及其他樣品, 如小板或薄膜。其他車廂可根據(jù)需要進(jìn)行低成本設(shè)計(jì)。熔融窗可以放置在樣品或立方的每一側(cè), 以最大限度地減少對(duì)流損失。使用 cd 250 主要用于吸收測(cè)量, 但根據(jù)托架設(shè)計(jì), 可在90度的激發(fā)下增加一個(gè)光學(xué)端口, 用于觀察熒光或光化學(xué)激發(fā)。使用 cd 250 在0°c 至105°c 的生物范圍內(nèi)工作。通過(guò)正確的托架設(shè)計(jì)和樣品, 將溫度范圍擴(kuò)展到-40°c 以下或高達(dá)150°c。使用菜單按鈕操作 tc 半溫度控制器, 通過(guò)可選程序 t-app 進(jìn)行控制, 或編寫自己的程序進(jìn)行控制。

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