紫外可见(jian)分光光度计UV-756PC

仪器功能(neng)

1.       光度测量：固(gu)定波长下检测样品的吸(xi)光度和透(tou)过(guo)率

2.       定(ding)量测量：C模式下单点法(fa)测试(shi)

             F模式下可输入(ru)C=KA+B准确测量浓(nong)度 

仪(yi)器特点

1.优秀(xiu)的光学系(xi)统，高性能1200条/nm光栅(zha)和进口钨灯及检测器保证仪(yi)器优良(liang)的性能(neng)指标。

2.USB接口，标(biao)配使(shi)用XP专业分(fen)析(xi)软件可实现全(quan)波长光谱扫描(miao)， 光度测(ce)量(liang)，定(ding)量(liang)测(ce)试，动力学测(ce)量(liang)等功能(neng)。     

3.宽大(da)的(de)样品室能容纳5-100mm各种规格(ge)的(de)比色(se)皿(min)。

4.波长屏幕显示(shi)，显示(shi)分(fen)辨率为0.1nm，读数稳定(ding)，准确。

5.并口(kou)打(da)印，选配专(zhuan)用打(da)印机，打(da)印测试结果。

6.最新(xin)的(de)微机处理技(ji)术使(shi)操作更加(jia)简便。

7.自动(dong)调整波(bo)长，仪器自动(dong)调OA和100%T一键校准无需放入黑体。

8.自动(dong)切(qie)换灯源，控制氘(dao)灯和(he)钨灯的开和(he)关。

主要技术(shu)参数(shu)

型号                UV-756PC                        

光谱带宽        0.5/1/2/4nm                        

波(bo)长重复性        0.1nm                        

波长范围        190-1100nm                        

波长准确度        ±0.5nm                        

光度(du)准确度(du)        ≤±0.3%T(0-100%T), ±0.002A(0-0.5A), ±0.004A(0.5-1A)

光度重复性        ≤±0.15%T(0-100%T), ±0.001A(0-0.5A), ±0.002A(0.5-1A)

稳定性        ±0.001A/h@500nm        ±0.001A/h@500nm        ±0.002A/h@500nm        

杂散光        ≤0.05%T@360nm220nm        ≤0.1%T@360nm220nm        ≤0.2%T@360nm220nm        

工作方式        T,A,C,F                        

调零(ling)方式        自动(dong)                        

光源               进口卤钨灯                        

单色器(qi)            CT式                        

基(ji)线平(ping)直(zhi)度        ±0.002A

显示范围          0-200%T，-0.3-3A

数(shu)据(ju)输出(chu)          USB口

打印输(shu)出           并 口

电源             ;      AC90-240/50Hz

仪(yi)器尺寸           470*370*200mm

重量(liang)                   15kg

 紫外可见分光光度计是基(ji)于紫(zi)外可(ke)见分(fen)光光度(du)法原理，利用(yong)物质分(fen)子(zi)对紫(zi)外可(ke)见光谱(pu)区(qu)的辐射吸收来进(jin)行分析的一(yi)种(zhong)分析仪器(qi)(qi)。主(zhu)要由(you)光(guang)源(yuan)、单色(se)器(qi)(qi)、吸收池、检测器(qi)(qi)和信号处理(li)器(qi)(qi)等部件组成。光(guang)源(yuan)的功能是提供足够强度的、稳定的连续光(guang)谱。紫外光(guang)区(qu)通常用(yong)(yong)氢灯(deng)或氘(dao)灯(deng).见光(guang)区(qu)通常用(yong)(yong)钨灯(deng)或卤钨灯(deng)。单(dan)色器(qi)(qi)的(de)功(gong)(gong)能是将光(guang)(guang)(guang)(guang)(guang)源发出的(de)复合光(guang)(guang)(guang)(guang)(guang)分(fen)(fen)(fen)解并从中(zhong)分(fen)(fen)(fen)出所需(xu)波长的(de)单(dan)色光(guang)(guang)(guang)(guang)(guang)。色散元(yuan)件(jian)(jian)有(you)棱镜和光(guang)(guang)(guang)(guang)(guang)栅两种(zhong)。可见光(guang)(guang)(guang)(guang)(guang)区(qu)(qu)的(de)测(ce)量(liang)用(yong)玻璃吸收池(chi)，紫外(wai)光(guang)(guang)(guang)(guang)(guang)区(qu)(qu)的(de)测(ce)量(liang)须用(yong)石英吸收池(chi)。检(jian)(jian)(jian)测(ce)器(qi)(qi)的(de)功(gong)(gong)能是通(tong)过(guo)光(guang)(guang)(guang)(guang)(guang)电(dian)转(zhuan)换元(yuan)件(jian)(jian)检(jian)(jian)(jian)测(ce)透过(guo)光(guang)(guang)(guang)(guang)(guang)的(de)强度(du)，将光(guang)(guang)(guang)(guang)(guang)信(xin)号(hao)(hao)转(zhuan)变成电(dian)信(xin)号(hao)(hao)。常(chang)用(yong)的(de)光(guang)(guang)(guang)(guang)(guang)电(dian)转(zhuan)换元(yuan)件(jian)(jian)有(you)光(guang)(guang)(guang)(guang)(guang)电(dian)管(guan)、光(guang)(guang)(guang)(guang)(guang)电(dian)倍增管(guan)及光(guang)(guang)(guang)(guang)(guang)二(er)极管(guan)阵列(lie)检(jian)(jian)(jian)测(ce)器(qi)(qi)。分(fen)(fen)(fen)光(guang)(guang)(guang)(guang)(guang)光(guang)(guang)(guang)(guang)(guang)度(du)计(ji)的(de)分(fen)(fen)(fen)类方(fang)法有(you)多(duo)种(zhong)：按(an)光(guang)(guang)(guang)(guang)(guang)路系统可分(fen)(fen)(fen)为(wei)(wei)单(dan)光(guang)(guang)(guang)(guang)(guang)束(shu)和双光(guang)(guang)(guang)(guang)(guang)束(shu)分(fen)(fen)(fen)光(guang)(guang)(guang)(guang)(guang)光(guang)(guang)(guang)(guang)(guang)度(du)计(ji)；按(an)测(ce)量(liang)方(fang)式可分(fen)(fen)(fen)为(wei)(wei)单(dan)波长和双波长分(fen)(fen)(fen)光(guang)(guang)(guang)(guang)(guang)光(guang)(guang)(guang)(guang)(guang)度(du)计(ji)；按(an)绘制光(guang)(guang)(guang)(guang)(guang)谱(pu)图(tu)的(de)检(jian)(jian)(jian)测(ce)方(fang)式分(fen)(fen)(fen)为(wei)(wei)分(fen)(fen)(fen)光(guang)(guang)(guang)(guang)(guang)扫描检(jian)(jian)(jian)测(ce)与二(er)极管(guan)阵列(lie)全谱(pu)检(jian)(jian)(jian)测(ce)