Name: Direct-zol™ DNA/RNA Miniprep Kit
SKU: R2080
Availability: InStock

<h2>What Are Spin-Column Total RNA Kits?</h2>
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Spin-column total RNA kits are the most widely used format for manual RNA purification in molecular biology laboratories. The technology relies on silica membrane chemistry: under chaotropic (guanidinium-based) lysis conditions, RNA adsorbs selectively to the silica membrane of the column; sequential ethanol-based wash steps remove proteins, salts, and gDNA fragments; and a low-ionic-strength buffer or RNase-free water then releases the purified RNA. Standard mini-format kits accept cell or tissue lysate from inputs of 1x10^4-1x10^7 cells or 5-100 mg tissue, bind up to 100 ug RNA, and complete the protocol in 15-30 minutes. The eluted RNA is suitable for RT-PCR, qRT-PCR, RNA sequencing, Northern blot, and hybridization without additional cleanup.&nbsp;Spin-column RNA kits are the default choice for 1-24 samples per run in any lab that does not require automated magnetic-bead processing.
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<h2 dir="ltr">What you will find:</h2>
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Quick-RNA Microprep and Miniprep Kits for low-volume elution and highly concentrated recovery, providing ultra-clean and phenol-free transcript isolation
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Direct-zol&trade; RNA Kits to bypass tedious phase separation steps, allowing researchers to pump TRIzol-lysed samples directly into spin-columns&nbsp;
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Direct-zol&trade; DNA/RNA Parallel Modules are engineered for the non-destructive, simultaneous isolation of DNA and RNA fractions.
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ZymoBIOMICS&trade; RNA Mini Kits for uniform microbial profiling featuring host-zeroing lysis mechanics
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Quick-RNA&trade; Midiprep Assemblies to capture larger quantities of high-purity total transcripts efficiently, tailored for bulk processing&nbsp;
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<h2>How to Choose Spin-Column Total RNA Kits</h2>
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Column Binding Capacity and Elution Volume
Mini-format columns bind up to 100 ug total RNA and elute in 10-100 uL. For samples with very low RNA content (needle biopsies, laser-capture microdissection sections, small cell numbers &lt;=10^4), choose micro-format columns with 8-12 uL minimum elution volume to maximize concentration. Eluting in &lt;30 uL with high RNA concentration increases sensitivity in downstream RT-qPCR.
Small RNA Retention
This is the most important differentiator between kit brands. Kits using Zymo-Spin column technology with proprietary binding buffers retain miRNA and small RNA species &gt;=17 nt in the total RNA fraction. Competing kits using standard high-ethanol wash chemistry typically lose RNA &lt;200 nt in the wash steps. If your workflow includes small RNA profiling, miRNA RT-qPCR, or small RNA-seq, verify that the kit retains &gt;=17 nt RNA before purchasing.
On-Column DNase Treatment
Included RNase-free DNase I that degrades gDNA on the column during the wash stage eliminates the need for post-elution DNase treatment. This matters for RT-qPCR with primers spanning a small intron, or for RNA-seq where even trace gDNA contamination generates false mapping reads. DNase-treated RNA typically passes a no-RT PCR control at Ct &gt;35.
Sample Type: Cells vs Tissue
Cell lysis buffer volumes and homogenization requirements differ by sample type. Cultured cells lyse directly in lysis buffer with vortexing; tissue samples require homogenization to disrupt cell structure before contact with the lysis buffer. For fibrous tissues (muscle, heart), use a bead-mill homogenizer or rotor-stator; for soft tissues (liver, brain), a disposable pestle or needle shearing is sufficient. Some kits include TissueLyser-compatible bead tubes or QIAshredder-equivalent homogenizer columns.
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<h2>Specifications Context</h2>
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Spin-column total RNA purity targets: A260/A280 ratio 1.8-2.1; A260/A230 ratio &gt;1.8. RNA integrity number (RIN) from fresh cultured cells or snap-frozen tissue is routinely 8-10 with validated kits. Zymo Research Quick-RNA Mini and Miniprep kits are among the most cited spin-column RNA isolation kits in published RT-PCR and RNA-seq methods; ABM RNA extraction kits offer validated protocols for bacteria, yeast, and fungi not covered by many standard cell/tissue kits. All kits supplied by MBP are Research Use Only (RUO).
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MBP's specialist team can help match kit chemistry, format, and throughput to your sample type and downstream application.&nbsp;<a href="https://mbpinc.net/contact-us">Contact the MBP team</a> for personalized guidance.
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Spin-column

Direct-zol™ DNA/RNA Miniprep Kit

Direct-zol™ DNA/RNA Miniprep Kit by Zymo Research co-purifies genomic DNA (>40 kb, 25 µg capacity) and total RNA (≥17 nt, 50 µg capacity) simultaneously from TRIzol or TRI Reagent-lysed samples in a single column workflow. Ideal for limited samples and integrated multi-omics studies. Available in 10 preps (R2080T) or 50 preps (R2080), with a TRI Reagent bundle also available at 50 preps (R2081).

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