Zetasizer Nano ZS90: DLS Zeta Potential Analyzer

دستگاه زتاسایزر نانو ZS90 دستگاهی با قيمت مناسب از شرکت Malvern Panalytical است. این دستگاه برای آنالیز پتانسيل زتا و برای اندازه‌گیری اندازه مولکول و اندازه ذرات با استفاده از تکنولوژی DLS: dynamic light scattering  طراحی شده است. این سیستم با بهره مندی از از اپتیک تفرق ۹۰ درجه ای ، امکان اندازه‌گیری ذرات در محدوده  ۰٫۳ nm تا ۵ micrometer را فراهم می سازد.

این دستگاه از قابلیت اندازه‌گیری وزن مولکولی با استفاده از Static scattering light و electrophoretic mobility  نیز برخوردار است.

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ویژگی‌های اساسی این دستگاه عبارتند از:

  • اندازه‌گیری پتانسیل زتای نانوذرات و کلوییدها با استفاده از تکنولوژی ثبت اختراع M3-PALS
  • توانایی اندازه‌گیری وزن مولکولی تا  ۹۸۰۰Da
  • اندازه‌گیری سایز از ۰٫۳ نانومتر (قطر) تا ۵ میکرومتر با استفاده از اپتیک‌ تفرق۹۰ درجه
  • فیلتر اپتیکی جهت بهبود کیفیت اندازه‌گیری نمونه فلوئوروسانس
  • لیزر جایگزین، ۵۰mW در ۵۳۲ نانومتر برای نمونه‌هایی که دارای تطابق با لیزر ۶۳۳ نانومتری نیستند.
  • وجود نرم‌افزار تحقیقاتی(Research software) امکان استفاده از قابلیت های بیشتر و الگوریتم‌های آنالیز را فراهم می‌کند.
  • وجود تیتراتور اتوماتیک، امکان اندازه‌گیری اتوماتیک را فراهم می‌کند.
  • امکان افزایش دما تا ۱۲۰ درجه سانتی‌گراد وجود دارد.
  • نرم افزار ۱۱ part CFR 21 امكان تطابق با ER/ES را فراهم می‌کند.

The Zetasizer Nano ZS90 is the perfect lower cost solution when the ultimate in sizing sensitivity is not necessary, or where identical results to a legacy system with 90 degree scattering optics is required.

  • Size measurement from 0.3nm (diameter) to 5 microns using 90 degree scattering optics.
  • Zeta potential of colloids and nanoparticles using patented M3-PALS technology.
  • Molecular weight measurement down to 9,800Da.
  • A ‘Quality Factor’ and ‘Expert Advice System’ gives the confidence of having an expert at your shoulder.
  • ۲۱CFR part 11 software option enables compliance with ER/ES.
  • Research software option gives access to further features and analysis algorithms for the light scattering specialist.
  • Automation of measurements using an autotitrator option.
  • Alternative laser, 50mW at 532nm for samples incompatible with the standard 633nm laser fitted.
  • Optical filter option to improve measurements with fluorescent sample.
  • Temperature range extension option to 120°C.

Particle size and molecular size

Measurement range:۰٫۳nm – ۵٫۰ microns* (diameter).
Measurement principle:Dynamic Light Scattering
Minimum sample volume:۲۰µL.
Accuracy:Better than +/-2% on NIST traceable latex standards.
Precision / Repeatability:Better than +/-2% on NIST traceable latex standards.
Sensitivity:۱۰mg/mL (Lysozyme)

Zeta potential

Measurement range:۳٫۸nm – ۱۰۰ microns* (diameter)
Measurement principle:Electrophoretic Light Scattering.
Minimum sample volume:۱۵۰µL (20µL using diffusion barrier method).
Accuracy:۰٫۱۲µm.cm/V.s for aqueous systems using NIST SRM1980 standard reference material.
Sensitivity:۱۰mg/mL (BSA)

Molecular weight.

Measurement range:۹,۸۰۰Da – ۲۰M Da*.
Measurement principle:Static Light Scattering using Debye plot.
Minimum sample volume:۲۰µL (3-5 sample concentrations required).
Accuracy:+/- ۱۰% typical.


Temperature control range:۰°C – 90°C +/-0.1**, 120°C option.
Light source:He-Ne laser 633nm, Max 4mW.
Laser safety:Class 1.

Weight and dimensions:

Dimensions (W, D, H):۳۲۰mm, 600mm, 260mm (W,D,H).
Weight:۲۱ kg

Operating environment:

Temperature:۱۰°C – ۳۵°C
Humidity:۳۵% – ۸۰% non-condensing


*:maximum range, sample dependent
**:at 25°C.
Patents:The Zetasizer Nano range is protected by the following patents: Non-Invasive Back Scatter (NIBS) EP884580, US6016195, JP11051843 High and Low Frequency Electrophoreses (M3) EP1154266, US7217350, JP04727064 Light Scattering Measurements using Simultaneous Detection EP2235501, CN102066901, JP2011523451, US20090251696 Surface Potential Determination in a Dip Cell WO2012172330


Automated Particle Size Measurement For The Zetasizer Nano

The Zetasizer NanoSampler is a sample delivery system that ensures highly precise and reproducible automated loading of samples into your Zetasizer Nano. The NanoSampler adds automation and unattended operation in a versatile, compact package, maximising the productivity of your Zetasizer Nano. While the benefits of automated operation are useful for all users, the NanoSampler is ideally suited for laboratories where a large number of measurements are required and reproducibility or multi-variate studies are important.

اطلاعات بیشتر


Simplify pH, conductivity and additive titrations on your Zetasizer Nano

A cost effective accessory designed to automate the measurement of size and zeta potential as a function of pH, conductivityor any soluble additive.

اطلاعات بیشتر

SV-10 viscometer

Viscosity measurement with speed, simplicity and accuracy.

The SV-10 measures viscosity with the accuracy required for dynamic light scattering, for the conversion of diffusion speed to size, and electrophoretic mobility to zeta potential, in an extremely simple and rapid system.

اطلاعات بیشتر

Cell And Cuvette Options

Disposable Folded Capillary Cell (DTS1070)

Eliminate Sample Cross Contamination Between Zeta Potential Measurements Using A Completely Disposable Cell.

636216710626428655QEThe zeta potential of colloids and molecules is extremely sensitive to contamination from components of a previous sample used in a measurement cell. The use of a disposable cell completely eliminates this potential contamination issue.

The folded capillary cell provides the benefits of the accuracy of measurement of a capillary cell with the ease of use of a disposable cell.

Although, disposable, including the electrodes, for low conductivity samples each cell can be used for hundreds of measurements if required.

The cell can be used with the autotitrator, where multiple measurements are routinely done over a wide pH range.

Universal ‘dip’ cell kit

Reusable solvent resistant cell.

636216766993958852VPThe dip cell is used for the measurement of zeta potential of samples in aqueous and non-aqueous dispersants, and is designed to be cleaned and reused. It is for batch measurements using standard polystyrene or glass cuvettes.

Universal ‘dip’ cell kit

Reusable solvent resistant cell.

  • Measure size and intensity with MPT-2 autotitrator. Connect to an SEC system to use as a DLS detector.

۱۲mm Glass cell (PCS1115)

Glass cuvette for use with the dip cell.

  • For size and zeta potential measurements using the ‘dip’ cell.Compatible with aqueous and non-aqueous solvents and dispersants.

۱۲mm Square Polystyrene Cuvettes (DTS0012)

Disposable polystyrene cuvettes.

  • ۱۰۰ disposable cells complete with 100 stoppers to avoid cross contamination.
  • For size measurements using aqueous dispersants.
  • Compatible with zeta potential measurements using the dip cell.

۱۲mm square glass cell (PCS8501)

Glass cuvette for batch measurements.

  • For size and molecular weight measurements.
  • Compatible with aqueous and non-aqueous solvents and dispersants.

Low-volume quartz batch cuvette (ZEN2112)

Low-volume quartz batch cuvette for size and molecular weight measurements.

  • Compatible with size and molecular weight measurements with aqueous and non-aqueous solvents and dispersants.
  • Minimum sample volume 12 microliters.
  • Maximum volume 45 microliters.


Disposable low volume cuvette for size measurement with 90° optics only.

  • ۱۰۰ x 50µL cuvettes with 100 caps to avoid cross contamination.
  • Compatible with aqueous dispersants.

Factory fitted options

۵۰mW 532nm DPSS laser

  • For use where the sample is incompatible with the standard 633nm laser, either because the sample absorbs or fluoresces, or the sample is photosensitive.This addition of this option does not affect the system specifications.

Narrow band filters

  • Useful where the sample fluoresces. Eliminates scattering due to fluorescence to improve the signal to background ratio.

High temperature capability

  • Increases the high temperature capability from 90°C to 120°C. Suitable for samples in wax media that melt above 90°C.

Degasser for MPT-2 autotitrator

  • Titrants used by the MPT-2 titrator need regular degassing, ideally before each titration.

    Degassing is required to remove bubbles that can affect the volume of titrant dispensed. This is particularly important close to pH 7 where low volumes of titrant are required.

    The degasser is a highly recommended ‘Fit and forget’ accessory that continuously degasses titrants which improves the speed of titrations and the accuracy of reaching the target pH. This gives more evenly spaced pH points.