Right Angle Static Multicolor Light Scattering

90°-angle light scattering detector suitable as GPC/SEC/GFC detector.

The SLD1000 RALLS (RALS) is a right angle static light scattering detector for the measurement of absolute molecular weight of macromolecules in solution. The special feature of the PSS SLD1000 light scattering detector is that it is not shipped with a fixed wavelength but that the wavelength is selectable in the range 300 to 600 nm. Different cell options (analytical, bioinert, micro) are available, cells can be easily exchanged.

The detector design allows seamless integration into any PSS (Bio)SECcurity² or Agilent 12x0 stack. In combination with an RI and a viscosity detector the light scattering detector can be used for triple detection.

Universal applicability


Stackable Multicolor Right Angle LS Detector

  • Stackable static light scattering detector for the detection of the time-averaged scattering intensity at 90° detection angle.
  • Light source with arbitrary wavelength between 300-600 nm that can be changed even within a sequence.
  • 3 different cell options, analytical, micro and bioinert version for harsh analytical conditions and extreme pH values, user exchangeable.
  • Early maintenance feedback (EMF) for continuous tracking of instrument usage. Electronic records of maintenance and errors, automated OQ/PV procedures.

Connect to Agilent/PSS

Connect to Agilent 12x0/PSS (Bio)SECcurity²

The SLD1000 is the perfect addition to any Agilent 12x0/Infinity II or PSS (Bio)SECcurity² system. It fits seamlessly into the stack and communicates via CAN bus with all other modules. At least one othe concentration detector, such as an RI or UV, is required. Three different cell options are available to match analytical or micro applications or to be fitted into a bioinert system.  

Data analysis requires WinGPC UniChrom software with the single angle light scattering module.

Software Options

Chromatography Data System with Light Scattering Analysis

Don't sacrifice flexibility, user-friendliness and compliance just to add light scattering to your lab. Protect your investments and ensure integrated solutions - now and in future.

WinGPC UniChrom MultiWorkstation or Client/Server controls the stack, acquires data and allow for comprehensive manual or automated analysis with flexible result output. Software wizards and guided setups support users and facilitate learning.

  • Profit from the convenient, secure and continuously improved features of a world wide used Chromatography Data System equipped with specific light scattering data analysis routines and test procedures.
  • Automatically generate ultra-fast molar mass and size results including result uncertainty even within an active sequence.
  • Or analyze samples in all details using WinGPC's advanced features and sophisticated tools.   
  • Transfer all results to a LIMS, create extensive reports and provide clear, scalable figures for presentations - all within one software package.


 SLD2020SLD7100SLD1000MDS Dual Angle
Detector type20 angle simultaneous detection  (MALLS)7 angle simultaneous detection  (MALLS)1 angle, 90° (multicolor RALLS)2 angle (integrated, dual angle)
No. of angles20712
Detection angles/
scattering angles
12, 20, 28, 36, 44, 52, 60, 68, 76, 84, 90, 100, 108, 116, 124, 132, 140, 148, 156, 164
detection angle = scattering angle
35, 50, 75, 90 105, 130, 145
index-matching cell: detection angle = scattering angle
9015, 90
Cell/Cell volumeGlass, SST (standard), Titanium, PTFE + 25% carbon, 63 µL, vertical, self-cleaningPEEK, 100µL nominal
vertical, self-cleaning
analytical: 8µL cell
bioinert: 8µL cell
micro: 4µL cell
Scattering volume< 7.8 nL20 nL nominal 0.01µL
Laser wavelength/power120 mW, 660 nm, vertically polarized, temperature stabilized light source with precision power control635 nm/35 mW, vertically polarized,
temperature stabilized with precision power control
user selectable arbitrary wavelength between 300-600 nm,
can be changed within sequence
660 nm/50 mW
  • metal-free flow path (P/N 403-1018, SLD2020B)
  • fluorescence filter (Upgrade options: P/N 403-1024 (10 filter)/P/N 403-1025 (20 filter))
  • fluorescence filter (Initial: P/N 403-1021 (10 filter) / P/N 403-1022 (20 filter))
  • temperature control (P/N 403-0005)
  • metal-free flow path (P/N 403-0014, SLD7100B)
  • fluorescence filter (P/N 403-0011)
  • Software for operation in batch mode (P/N 403-0004)
  • µ-flow cell
  • bioinert flow cell
  • upgrade with viscometer and/or RI in same enclosure
  • upgrade with viscometer and/or RI, enclosure expansion
  • metal free flow path, optional: dynamic light scattering


Learn More

SLD1000 mAB Application Note

Sophisticated antibody analysis by GPC/SEC multi-chrome light scattering. Download the application note.

e-book: GPC/SEC Detection

(Absolute) molar masses, structures, branching, composition - request our e-book on GPC/SEC detection.

Webinar GPC/SEC- Light Scattering

Theoretical background, advantages and limitations? Learn more in this webcast.


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