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 是一個獨立的支架, 可根據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 cd 250 的溫度控制塔內牢固地安裝在 cd 250 內的 cuvette 托架來實現的。立方車廂可用于幾種類型的立方, 包括正方形、長方形或圓柱形的切割機, 以及其他樣品, 如小板或薄膜。其他車廂可根據需要進行低成本設計。熔融窗可以放置在樣品或立方的每一側, 以最大限度地減少對流損失。使用 cd 250 主要用于吸收測量, 但根據托架設計, 可在90度的激發下增加一個光學端口, 用于觀察熒光或光化學激發。使用 cd 250 在0°c 至105°c 的生物范圍內工作。通過正確的托架設計和樣品, 將溫度范圍擴展到-40°c 以下或高達150°c。使用菜單按鈕操作 tc 半溫度控制器, 通過可選程序 t-app 進行控制, 或編寫自己的程序進行控制。

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