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turbidimeter

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Journal Article
Published: 01 September 1973
Journal of Sedimentary Research (1973) 43 (3): 898–903.
...Cathie Lubell; Thomas Barry; Edward Brody; Gregory Hearn Abstract This dual beam turbidimeter can be made for under $1000. The light source is a 2 milliwatt helium neon laser. Use of a laser eliminates the need for collimating optics. The light detector is a photomultiplier tube, thus permitting...
Journal Article
Published: 01 March 1956
Journal of Sedimentary Research (1956) 26 (1): 61–63.
...John Samuel Bradley Abstract A simple turbidimeter for measuring suspended solids in sea water for the range 0 to 1000 parts per million was made from a light meter, variable voltage transformer, and a light globe. The instrument may prove of value in other sedimentation studies. GeoRef...
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Primary parameters (%) of the SGZ-B <b>turbidimeter</b>.
Published: 02 August 2019
Table 3. Primary parameters (%) of the SGZ-B turbidimeter.
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Photograph of the loaded True-Triaxial Load Cell (without lid), filled with...
Published: 01 February 2014
Figure 3. Photograph of the loaded True-Triaxial Load Cell (without lid), filled with soil prior to the test. Note the granular filter at the inlet end and the turbidimeter at the outlet end. Quick connect in photograph is used for attaching the pressurized air line used to control
Journal Article
Published: 02 August 2019
Environmental and Engineering Geoscience (2019) 25 (3): 189–202.
...Table 3. Primary parameters (%) of the SGZ-B turbidimeter. ...
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Journal Article
Journal: Geology
Published: 01 July 2005
Geology (2005) 33 (7): 593–596.
... during the initial exponential phase of population growth. Cell concentrations in cultures were measured daily by removing 15 mL of water after homogenizing the upper part of the culture by gentle stirring with a sterile glass rod. Cell density was measured with a Hach 2100P turbidimeter, after which...
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Journal Article
Published: 01 August 2005
Vadose Zone Journal (2005) 4 (3): 828–837.
... was measured with a Model 94178 chloride electrode (Thermo Electron Corp., Beverly, MA) in the detection range from 1.8 to 35 500 mg L −1 . Turbidity was determined using a 2020 Turbidimeter (LaMotte Co., Chestertown, MD) with the Tungsten incandescent bulb as the light source. The turbidimeter was calibrated...
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Journal Article
Published: 01 August 2012
Clays and Clay Minerals (2012) 60 (4): 405–410.
.... The colloidal stability of kaolinite was investigated through turbidity measurements using a Hach 2100AN turbidimeter (Loveland, Colorado, USA). Turbidity values were expressed in nephelometric turbidity units (NTU). In turbidity tests, 0.5 g of kaolinite was first conditioned with 50 mL of salt solution...
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Journal Article
Journal: Clay Minerals
Published: 01 June 2005
Clay Minerals (2005) 40 (2): 213–222.
...-II + viscometer (USA); and after 2 min and 1 h to record any change in viscosity with time. Also, 0.15 g of CP-smectite and Na-smectite were mixed with 30 ml of DH 2 O for turbidity measurement using a turbidimeter (HACH 2100N, USA). 0.2 g of Na-smectite and 30 ml of DH 2 O were mixed...
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Journal Article
Published: 01 June 2011
Clays and Clay Minerals (2011) 59 (3): 233–239.
... of the suspensions depends on the dosage of sodium silicate. The colloid stability of the kaolinite particles was investigated through turbidity measurements using a Hach 2100AN turbidimeter (Loveland, Colorado, USA). Turbidity values were expressed in nephelometric turbidity units (NTU). In the turbidity...
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Journal Article
Published: 01 February 2014
Environmental and Engineering Geoscience (2014) 20 (1): 85–97.
...Figure 3. Photograph of the loaded True-Triaxial Load Cell (without lid), filled with soil prior to the test. Note the granular filter at the inlet end and the turbidimeter at the outlet end. Quick connect in photograph is used for attaching the pressurized air line used to control...
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Journal Article
Published: 01 February 2003
Vadose Zone Journal (2003) 2 (1): 34–39.
...-10A Turbidimeter manufactured by Orbeco Analytical Systems, Inc. (Farmingdale, NY). The FC transport was simulated assuming steady state water flow and neglecting variations in water content and pore structure along the soil profile. The model was chosen in the form 1 \batchmode...
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Journal Article
Published: 01 May 2004
Vadose Zone Journal (2004) 3 (2): 462–470.
... with diameter >2 μm, according to Stokes Law. From the supernatant 30 mL were removed by pipette and transferred to a vial for measurements of turbidity. Turbidity was measured with a Hach 2100AN (Hach, Loveland, CO) turbidimeter equipped with an EPA filter, measuring at wavelengths of 400 to 600 nm...
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Journal Article
Published: 01 May 2004
Vadose Zone Journal (2004) 3 (2): 424–433.
... turbidimeter (Hach, Loveland, CO). Turbidity values (expressed in nephelometric turbidity units, NTU) were converted to colloid concentration using regression equations based on suspensions of LE-WDC separated from each clay soil. The procedure for separating LE-WDC is described by Kjaergaard et al. (2004a...
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Journal Article
Published: 01 November 2015
Vadose Zone Journal (2015) 14 (11): vzj2015.03.0047.
... a Hach 2100P Portable Turbidimeter. Nitrite was measured by a spectrophotometric method, ASTM D3867 ( Rice et al., 2012 ). Chloride, nitrate, and sulfate were determined by anion chromatography (Dionex ICS5000). Sodium, potassium, calcium, and magnesium were analyzed by using an inductively coupled...
FIGURES
Journal Article
Published: 01 April 2016
Mineralogical Magazine (2016) 80 (2): 347–362.
... by two additional hours of treatment at 4°C. Samples were then held at ambient temperature (∼20°C). Turbidity was measured in nephelometric turbidity units (NTU), before and after the oven treatment, using a Hanna Instruments HI83749 turbidimeter. The test is based on the fact that proteins denature...
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Journal Article
Journal: PALAIOS
Published: 01 January 2009
PALAIOS (2009) 24 (8): 478–496.
... in nephelometric turbidity units (NTU) using a portable turbidimeter. In addition, resin casts were made in a number of intertidal subenvironments within the system in order to ascertain the local three-dimensional burrow morphology and associated potential trace fossils. The organisms described...
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Journal Article
Published: 01 August 2002
Vadose Zone Journal (2002) 1 (1): 125–136.
... was measured by light extinction at a wavelength of 400 nm using a Spectronic 2000 spectrophotometer (Bausch and Lomb Inc., New York, NY). In Exp. 2, concentration was measured using a Hach 2100AN turbidimeter equipped with an EPA filter, measuring at wavelengths 400 to 600 nm (Hach, Loveland, CO...
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Journal Article
Published: 01 October 2014
Vadose Zone Journal (2014) 13 (10): vzj2014.05.0054.
... of suspended matter determined by filtration through a 1.6-μm Whatman glass fiber filter (DS/EN 872:2005). From 22 Sept. 2010 and onward, the particle concentrations were also determined from the turbidity of the sample using a Hach 2100AN turbidimeter. These results were converted to a particle concentration...
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Journal Article
Published: 01 January 2006
Vadose Zone Journal (2006) 5 (1): 445–458.
...), which is considerably closer to the P source compared with our drains at the 1.1-m depth. In the laboratory, the effluent samples were first analyzed for turbidity, pH, and EC. Turbidity was measured with a Hach 2100AN turbidimeter (Hach, Loveland, CO) equipped with an EPA filter, measuring...
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