The MR9600-340 is the 340 nm wavelength filter for the Accuris MR9600 SmartReader 96 Microplate Absorbance Reader — a single-wavelength interference filter for absorbance measurement at the 340 nm UV wavelength. The 340 nm wavelength is the standard absorbance measurement wavelength for NADH and NADPH — used in enzyme-activity assays where NADH / NADPH production or consumption is the kinetic readout (lactate dehydrogenase, glucose-6-phosphate dehydrogenase, malate dehydrogenase, and many other dehydrogenase-based enzyme assays).
Key Specifications
| SKU | MR9600-340 |
| Type | Single-wavelength interference filter — 340 nm |
| Wavelength | 340 nm (UV range) |
| Pricing tier | UV range ($325 — vs visible-range filters at $325.00) |
| Compatible chassis | MR9600 SmartReader 96 microplate absorbance reader |
| Workflow position | Optional accessory for non-standard wavelength workflows |
| List price | $325 |
What This Filter Does
The MR9600 SmartReader 96 ships with a standard wavelength filter set covering common microplate-reader wavelengths. For workflows requiring non-standard or additional wavelengths, individual single-wavelength filters extend the chassis's measurement capability. The MR9600-340 adds 340 nm to the chassis's wavelength capability — useful when the lab's enzyme-activity workflow requires NADH/NADPH absorbance measurement and the standard filter set doesn't include 340 nm.
340 nm common applications:
- NADH/NADPH absorbance measurement — quantifying NADH (or NADPH) at the wavelength's λ_max where ε = 6,220 M⁻¹·cm⁻¹
- Dehydrogenase enzyme-activity assays — lactate dehydrogenase, glucose-6-phosphate dehydrogenase, malate dehydrogenase, alcohol dehydrogenase, and many other NAD(P)H-coupled enzyme assays
- Glucose-6-phosphate-6-phosphogluconate dehydrogenase coupled assays — used in glucose, hexokinase, and similar metabolic-pathway enzyme assays
- Cytochrome b5 reductase assays — methemoglobin reductase activity quantification
MR9600 Filter Wavelength Family
The MR9600 SmartReader 96 supports a wide range of single-wavelength filters per the Accuris catalog. Filters split into pricing tiers based on optical-component cost:
| Range | Pricing tier | Common wavelengths |
| UV (340–380 nm) | $325 each | 340 (NADH/NADPH), 370, 380 |
| Visible (405+ nm) | $325.00 each | 405 (Bradford / paranitrophenol), 415 (peroxidase), 420, 450 (ELISA), 470, 492 (TMB), 510, 520, 540 (DNPH), 546 (Coomassie alt), 560, 562, 570 (Coomassie), 578, 590, 595 (Bradford alt), 600 (cell density), 620, 630, 650, 663 (chlorophyll), 665, 680, 690, 700, 750 |
UV-range filters cost more due to the more expensive UV-pass interference-coating manufacturing process.
Compatibility & When to Order This SKU
Filter pairing — MR9600 SmartReader 96 only. Order this SKU when:
- Adding 340 nm wavelength capability to an MR9600 install for NADH / NADPH absorbance measurement or dehydrogenase enzyme-activity workflows
- Replacement — if an existing 340 nm filter is damaged or has reached service life
- Spare filter inventory for multi-chassis MR9600 fleets
For other wavelengths, order the appropriate MR9600-NNN sister SKU at the matching wavelength.
Ordering & Configuration
Compatibility verification. Critical at order: confirm the chassis is MR9600 SmartReader 96 specifically (the MR9610 / MR9611 UV-Vis SmartReaders use different optical-system architecture and may use different filter SKUs).
Software workflow integration. Confirm at order whether the chassis's software supports the new wavelength filter directly or requires a software-update / configuration step.
Confirm at quote: chassis pairing (MR9600 in inventory), workflow context (NADH / NADPH workflow, enzyme-activity assay protocol), software version, and lead time.
Warranty: Per Accuris standard warranty terms — confirm at quote.
MR9600 SmartReader 96 wavelength filter family — UV range:
- MR9600-340 (this product) — 340 nm (NADH / NADPH)
- MR9600-370 — 370 nm
- MR9600-380 — 380 nm
Plus visible-range filters (405 nm through 750 nm) at lower price tier — pick the wavelength matching the workflow's specific assay protocol.
