Nano Spectrophotometer

<h2>What Are Nano Spectrophotometers?</h2>
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A nano spectrophotometer (microvolume UV-Vis spectrophotometer) measures the absorbance of ultraviolet and visible light through a small volume (1 to 2 microliters) of sample held by surface tension between two optical-quality fiber pedestals or on a measurement arm surface, without a cuvette. The Beer-Lambert law relates absorbance to concentration: at 260 nm, 1 absorbance unit (AU) corresponds to 50 micrograms/mL of double-stranded DNA (dsDNA), 40 micrograms/mL of RNA, and 33 micrograms/mL of single-stranded DNA (ssDNA). At 280 nm, protein absorption from aromatic amino acids (tyrosine, tryptophan, phenylalanine) allows concentration estimation using the A280 method or extinction coefficients. Purity ratios A260/A280 and A260/A230 indicate contamination: A260/A280 of 1.8 (DNA) or 2.0 (RNA) indicates high purity; ratios below these values indicate protein or other UV-absorbing contaminant carryover. A260/A230 above 2.0 indicates the absence of carryover from EDTA, guanidinium, or carbohydrate contaminants common from silica-column purification kits. The full spectrum from 190 to 850 nm allows additional analysis: OD600 for bacterial culture density; custom wavelength measurements; and detection of heme, chlorophyll, and other chromophores. A nano spectrophotometer is the fastest way to verify DNA or RNA concentration and purity before PCR, sequencing, or cloning; it uses 1 to 2 microliters, takes 5 to 10 seconds per read, and requires no cuvette or dilution for concentrations above approximately 2 ng/microliter.
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<h2 dir="ltr">What you will find: </h2>
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<li>Nano spectrophotometers for rapid microvolume nucleic acid and protein quantification using pedestal and cuvette measurement modes.</li>
<li>Fluorometer systems for highly sensitive DNA, RNA, and protein quantification using fluorescence-based assays.</li>
<li><a href="https://mbpinc.net/equipments/microscopes-balances-and-analytical-equipment/nano-spectrophotometer/nano-spectrophotometer-accessories">Nano Spectrophotometer Accessories</a> for SmartDrop instruments, including replacement printer paper rolls, pedestal reconditioning solution, and standard-size cuvettes.</li>
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<h2>How to Choose a Nano Spectrophotometer</h2>
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Single-sample vs. multi-sample throughput
Single-pedestal nano spectrophotometers (most models) measure one sample at a time, with read times of 5 to 10 seconds per sample. For labs measuring fewer than 20 samples per session, a single-sample model is adequate. High-throughput eight-pedestal models (such as the NanoDrop Eight) accept a row of 8 samples simultaneously from a 96-well plate strip, processing 96 samples in approximately 2 minutes, which is essential for next-generation sequencing library prep workflows, automated sample QC, and high-throughput screening.
Measurement range and sensitivity
The upper concentration limit of nano spectrophotometers is set by the path length: standard 1 mm path length accommodates dsDNA from 2 to 3,700 ng/microliter without dilution (NanoDrop-type instruments auto-select 0.2 mm or 1.0 mm path length based on absorbance). The lower detection limit is approximately 2 ng/microliter for dsDNA in UV mode; samples more dilute than this require fluorometric quantification (Qubit-type instruments with fluorescent dyes specific to DNA, RNA, or protein).
Contaminant detection algorithms
Basic nano spectrophotometers report A260, A280, A260/A280, A260/A230, and calculated concentration. Advanced models (NanoDrop Ultra type) include software algorithms (Acclaro-type intelligence) that use full-spectrum data to identify and correct for specific contaminants: dsDNA contamination in RNA samples; RNA contamination in dsDNA; guanidinium from RNA extraction kits; and EDTA carryover. Specify these advanced features for workflows where sample purity assessment matters for downstream application success (RT-qPCR, long-read sequencing, CRISPR libraries).
Touchscreen vs. PC-connected operation
Standalone touchscreen nano spectrophotometers allow operation without a connected PC, storing results internally or exporting via USB. PC-connected models require a laptop or PC with the instrument software installed for operation and data export, but provide more flexibility in data management, LIMS integration, and custom method programming. For shared lab equipment where multiple users access the instrument, touchscreen standalone models are operationally simpler.
Protein measurement modes
All nano spectrophotometers measure protein at A280 using a user-specified extinction coefficient. Advanced models add preprogrammed protein types (BSA, IgG, lysozyme, human serum albumin), A205 direct measurement for proteins with low or no A280 signal, and colorimetric assay support (BCA, Bradford, Lowry, Pierce 660 nm) for protein quantification using plate-reader-style microvolume cuvette adapters.
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<h2>Specifications Context</h2>
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Measurement accuracy at 260 nm is typically stated as plus or minus 1 to 2% coefficient of variation for repeat measurements of the same sample. Wavelength accuracy is specified as plus or minus 1 nm. Confirm the dynamic range covers the sample concentrations typically encountered in your workflow; highly concentrated DNA libraries from solid-phase extraction (above 500 ng/microliter) are accurately measured at 0.2 mm path; dilute RNA samples from small cell numbers or rare tissues may fall below the UV detection limit and require fluorometric quantification. Calibrate the blank (blanking solution) using the same buffer or elution solution as the sample; blanking with water when the sample is in TE buffer introduces a measurement error at A230 from EDTA absorption.
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To discuss product availability or get selection guidance,&nbsp;<a href="https://mbpinc.net/contact-us">contact the MBP team</a>.

User Manual

Brochure

SmartDrop Models

High Sensitivity DNA Quantification Kit, 100 assays

Broad Range DNA Quantification Kit, 100 assays

0.5mL Fluorescence Detection Tubes, pack of 250

Additional Standard-Size Cuvettes, pack of 2

Extra paper roll for SmartDrop internal printer, Pk 3

SmartDrop Nano Spectrophotometer

Accuris™ SmartDrop Nano Spectrophotometers

The NS1000 by Accuris Instruments (SmartDrop L) is a microvolume UV-Vis spectrophotometer for DNA, RNA, and protein quantification using 1.0–2.0 µL samples at 260, 280, and 600 nm. Covers dsDNA from 10–2,500 ng/µL without dilution, with 0.005 A absorbance precision, 260/280 and 260/230 ratio calculations, 7-inch touchscreen, integrated thermal printer, and an OD600 cuvette port. Available in 115 V (NS1000) and 230 V (NS1000-E).

Manufacture

SmartDrop™ L Nano Spectrophotometer, 115V

SmartDrop™ L Nano Spectrophotometer, 230V

SmartDrop™ X Nano Spectrophotometer, 115V

SmartDrop™ X Nano Spectrophotometer, 230V

SmartDrop™ XF Nano Spectrophotometer, 115V

SmartDrop™ XF Nano Spectrophotometer, 230V

Nano Spectrophotometer Accessories

<h2>What Are Nano Spectrophotometer Accessories?</h2>
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Nano spectrophotometer accessories maintain measurement accuracy, extend the instrument's application range, and support compliance in regulated laboratory environments. They fall into three categories: consumables (cleaning supplies used between every sample measurement), application accessories (microvolume cuvette adapters, fluorometry modules, and assay reagent kits that expand measurement capability), and qualification and compliance accessories (calibration verification kits, performance qualification documentation packages, and software modules for GLP/21 CFR Part 11 data integrity). Cleaning consumables are the highest-turnover accessory type and the most critical for measurement quality: residual sample on the measurement pedestal between readings causes carryover, elevated A260/A280 ratios from nucleic acid contamination, and falsely elevated protein concentrations. Instrument-specific lint-free wipes (not standard lab tissues, which leave fibers) are required for a clean wipe-down of the pedestal between samples. The single most impactful accessory for nano spectrophotometer accuracy is the correct lint-free wipe used between every sample and every blank; inadequate pedestal cleaning between reads is the leading cause of inaccurate measurements.
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<h2 dir="ltr">What You Will Find:</h2>
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Specialized 0.5mL tubes packaged in sets of 250, engineered to ensure clear light paths for highly sensitive fluorometric assays.
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High-quality replacement cuvettes for traditional macro-volume spectroscopy verification alongside microvolume testing.
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Formulated explicitly for SmartDrop systems to provide precise, high-sensitivity fluorometric nucleic acid concentration measurements.
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A vital optical maintenance formula that restores hydrophobic properties to the pedestal surface, ensuring perfect sample droplet formation.
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Replacement thermal paper sets to keep your automated internal printers operating for immediate on-bench data logging.
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<h2>How to Choose Nano Spectrophotometer Accessories</h2>
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Pedestal cleaning wipes and tissues
Optical-grade, lint-free wipes specifically designed for nano spectrophotometer pedestals are the primary consumables. Standard laboratory tissues (Kimwipes) are adequate but may leave very fine fibers that accumulate on the fiber pedestal over time. Instrument-specific wipes designed for the pedestal geometry (flat or curved arm) ensure complete sample removal without scratching the optical surface. Wipe down both the upper and lower pedestal surfaces after every measurement and after every blank. Replace wipes with clean ones between each sample to prevent cross-contamination.
Microvolume cuvette adapters
Microvolume cuvette adapters (such as a micro-cuvette or TrayCell-type accessory) allow nano spectrophotometers with a macro-cuvette port to measure sample volumes of 0.5 to 50 microliters in a path length of 1 to 10 mm. They are used when the sample concentration is below the direct pedestal measurement range (below 2 ng/microliter for dsDNA), and a longer path length is needed to produce measurable absorbance. Confirm that the cuvette adapter is compatible with the specific cuvette measurement mode of the nano spectrophotometer model.
Calibration verification kits
Calibration verification kits contain certified reference standards (solutions of known absorbance at defined wavelengths) used to verify that the instrument's wavelength accuracy and photometric response are within specification. These kits are required for laboratories operating under GLP, ISO 17025, or USP spectrophotometric requirements. Standards include NIST-traceable holmium oxide solution (wavelength calibration standard) and potassium dichromate solution (photometric linearity standard). Verification should be performed at defined intervals specified in the laboratory's quality management system.
Fluorometry assay kits and tubes
Nano spectrophotometers with an integrated fluorometry mode require compatible fluorometric assay kits (high-sensitivity DNA, RNA, or protein quantification assay reagent sets) and appropriate assay tubes or microplates for the fluorometry measurement position. These kits work on the same principle as Qubit-type assays: a fluorescent dye that binds specifically to dsDNA, ssDNA, or RNA produces a signal proportional to analyte concentration. Confirm the kit is specified for the instrument's fluorometry mode and measurement geometry.
Software licenses and validation modules
For regulated environments (pharmaceutical QC, GMP testing, ISO 17025-accredited labs), software licenses that enable 21 CFR Part 11 compliance (audit trails, electronic signatures, data integrity controls) and IQ/OQ/PQ documentation packages are available for most research-grade nano spectrophotometers. These validation packages contain installation qualification (IQ), operational qualification (OQ), and performance qualification (PQ) test scripts and acceptance criteria for the specific instrument model. Confirm the validation package version is compatible with the installed software version before purchase.
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<h2>Specifications Context</h2>
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Pedestal optical surfaces on nano spectrophotometers are sapphire or quartz fiber, materials that are resistant to most laboratory solvents and cleaning agents but susceptible to physical abrasion from hard particles in standard tissues. Avoid rough tissues, cotton swabs, or abrasive wipes on the pedestal surface. If the pedestal shows persistent background absorbance or drift after normal cleaning, clean with 1:1 isopropanol: water on a lint-free wipe, followed by a dry wipe and a new blank measurement. For stubborn contamination (dried protein, ethidium bromide, phenol), manufacturer-specific cleaning protocols should be followed; using unauthorized solvents on the pedestal can dissolve seals or damage the fiber coating.&nbsp;
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Ready to enhance your microvolume workflows? Explore our full range of Nano Spectrophotometer Accessories and reach out to the <a href="https://mbpinc.net/contact-us">MBP team</a> for a quote today.

The NS1000-C by Accuris Instruments is a pack of two standard-size optical glass cuvettes for the cuvette port of the Accuris SmartDrop L Nano Spectrophotometer (NS1000), primarily used for OD600 bacterial growth and cell density measurements. They serve as replacement cuvettes for the two units that ship with the NS1000 instrument. Order at mbpinc.net/quickorder using catalog number NS1000-C.

NS1000-PA by Accuris Instruments — pack of 3 replacement thermal paper rolls for the built-in printer of the SmartDrop L (NS1000) nano spectrophotometer. Supports printed hard-copy documentation of absorbance readings for GLP workflows.

SmartDrop pedestal reconditioning solution, 1.0 ml

NS1000-RS by Accuris Instruments — 1.0 mL pedestal reconditioning solution formulated to restore the SmartDrop L (NS1000) quartz pedestal to factory absorbance accuracy after prolonged sample use. Part of the recommended SmartDrop L preventive maintenance protocol.