黑龙江体育彩票历史开奖号码

STEP 技術? - 從上到下的瞬間,整個樣本,不只是一個單點!

STEP 技術? - 空間和時間的消光圖譜

我們儀器的核心在于尖端的 STEP技術(空間、時間消光圖譜)。這項技術具有靈活性,能讓您擁有前所未有的洞察力,能讓您對乳液和懸浮液有深入的理解。
使用光源照射整個樣品,并且使用多個傳感器接收透過樣品管后的光強度,得到消光圖譜,我們就可以檢測到樣品成分和分離過程中樣品的變化。

STEP-技術會給您帶來快速、自由和靈活的測試手法。您可以選擇對您的樣品采用多點測試或采用單一點測試。您可以分析分散相粒子的沉淀和分層,以及真實的濃度范圍。
此外,您還可以測量:穩定性、粒徑分布、沉淀/乳液和澄清率,推測保質期,特定產品,觀察凝聚結,測量絮凝率和絮體強度,觀察厚度和沉淀/乳液層密度,研究膠體的結晶,等等。

Scheme

STEP-Technology? general scheme and for LUMiReader PSA (below) with patented tilt technology for measuring either in real-time (gravity) or with a reduced measurement time (depends on tilting degree).

Read about STEP Technology? in detail

STEP-Technology permits to obtain Space- and Time-resolved Extinction Profiles over the entire sample length of up to 12 different samples simultaneously. Parallel light (I0) illuminates the entire sample cell and the transmitted light I is detected by thousands of sensors arranged linearly across your whole sample from top to bottom with a microscale resolution. Transmission is converted into extinction by lg I/I0 and particle concentration may be calculated. STEP-Technology gives also high flexibility to use different cells to match specific sample properties.

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By means of the comprehensive software SEPView the light intensity can be adjusted to the corresponding sample turbidity. Transmission profils are recorded as fast as each second or with time intervalls up to hours, displayed as a sequence on the screen. Transmission date are automatically stored in a special designed database, together with all instrument settings and actual calibration data.

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The speed of the centrifuge can be set at a constant value or programmed to change during the measurement in the range from 200 rpm to 4000 rpm. These rpm-values correspond to relative centrifugal forces (RCF) at the bottom of the cell of 5 to 2300 (RCF = centrifugal acceleration/earth gravity). Built-in temperature control covers all present and future applications.

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Evaluation Features: The evolution of the transmission profiles contains the complete information on the kinetics of any concentration changes due to creaming, sedimentation, flocculation, coalescence or phase separation. Based on these space- and time-resolved extinction profiles demixing phenomena are quantified regarding clarification velocity, sedimentation and flotation velocity of particles, residual turbidity, separated phase volume (liquid or solid), sediment consolidation or dewaterability.

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Furthermore, comprehensive infomation is obtained with respect to the multimodality or polydispersity of dispersed particles.



選擇在您手中

無論是研發、質量控制、產品優化,LUMiSeries都讓您遙遙領先競爭對手。LUMiseries組成如下:LUMiReader PSA, LUMiReader X-Ray, LUMiSizer, LUMiFuge and LUMiFrac.

 

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