STEP 技術(shù)? - 從上到下的瞬間，整個(gè)樣本，不只是一個(gè)單點(diǎn)！
STEP 技術(shù)? - 空間和時(shí)間的消光圖譜
我們儀器的核心在于尖端的 STEP技術(shù)（空間、時(shí)間消光圖譜）。這項(xiàng)技術(shù)具有靈活性，能讓您擁有前所未有的洞察力，能讓您對(duì)乳液和懸浮液有深入的理解。
使用光源照射整個(gè)樣品，并且使用多個(gè)傳感器接收透過(guò)樣品管后的光強(qiáng)度，得到消光圖譜，我們就可以檢測(cè)到樣品成分和分離過(guò)程中樣品的變化。
STEP-技術(shù)會(huì)給您帶來(lái)快速、自由和靈活的測(cè)試手法。您可以選擇對(duì)您的樣品采用多點(diǎn)測(cè)試或采用單一點(diǎn)測(cè)試。您可以分析分散相粒子的沉淀和分層，以及真實(shí)的濃度范圍。
此外，您還可以測(cè)量：穩(wěn)定性、粒徑分布、沉淀/乳液和澄清率，推測(cè)保質(zhì)期，特定產(chǎn)品，觀察凝聚結(jié)，測(cè)量絮凝率和絮體強(qiáng)度，觀察厚度和沉淀/乳液層密度，研究膠體的結(jié)晶，等等。
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).
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(wú)論是研發(fā)、質(zhì)量控制、產(chǎn)品優(yōu)化，LUMiSeries都讓您遙遙領(lǐng)先競(jìng)爭(zhēng)對(duì)手。LUMiseries組成如下：LUMiReader PSA, LUMiReader X-Ray, LUMiSizer, LUMiFuge and LUMiFrac.